0, 0 le Î¼r < 1 (B) -1 le Magnetic permeability relates the magnetic field ($$\vec H$$) to the magnetic flux density ($$\vec B$$). Relative permeability, sometimes denoted by the symbol Î¼r, is the ratio of the permeability of a specific medium to the permeability of free space. In certain kinds of materials, like ferromagnets, magnetic permeability can get to be quite complex. Para-, dia- and ferro- magnetic substances. Electromagnetic travel in a medium at a speed of . 1 i) Bar magnet as an equivalent Solenoid, magnetic field lines; j) Earthâs magnetic field and magnetic elements. Loading... Unsubscribe from Real Physics? Ïis susceptibility. The slope of the former when divided by the magnetic space constant, Î¼ 0 gives the magnetic susceptibility and the slope of the latter gives the magnetic permeability, Î¼ (= Î¼ 0 Î¼ r). The susceptibility of a magnetic material is 1.9 × 10-5. The susceptibility of a body to the acquisition of a magnetic moment when exposed to a magnetic field, H a, is its magnetic susceptibility, Ï Î M/H a, where M is its magnetization. Permeability varies with a magnetic field. Given: Magnetic field = B = 1.3 T, magnetic intensity = â¦ For ordinary solids and liquids at room temperature, the relative permeability K m is typically in the range 1.00001 to 1.003. j) Earthâs magnetic field and magnetic elements. Magnetic permeability is also a diagnostic physical property for unexploded ordnance (UXO) surveys. MEDIUM. Magnetic susceptibility is a measure of the ability of a material to be magnetized. Para-, dia- and ferro- magnetic substances. Relation between Magnetic Susceptibility and Magnetic Permeability. Find an answer to your question Derive relation between relative magenetic permeability and magnetic susceptibility. The static magnetic susceptibility calculated throughout this book is the longitudinal susceptibility, i.e. Related formulas unit of magnetic permeability is H/m. The relative permeability is defined as the ratio of the permeability of substance to the permeability of vacuum. Name the type of magnetic materials it represents. Find relative permeability and magnetic susceptibility of the substance. The relative permitivity of the medium is 2.25. Identify the following magnetic materials: (i) ... Susceptibility of a magnetic substance is found to depend on temperature and the strength of the magnetising field. The magnetic susceptibility is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field. The M-H and B-H curves of the ferromagnetic materials are very similar in nature. Amitgrover8930 Amitgrover8930 05.01.2017 Physics Secondary School Derive relation between relative magenetic permeability and magnetic susceptibility. Magnetic Permeability. The ability of a material to permit the passage of magnetic lines of force through it is called magnetic permeability. 4 Ï × 10 â7 NâA â2 is the magnetic permeability of free space. Magnetic Permeability. 5.7k SHARES. The permeability Î¼ is often used for ferromagnetic materials such as iron that have a large magnetic susceptibility dependent on the field and the previous magnetic state of the sample; permeability is defined by the equation B = Î¼ H. From equations (8) and (9â¦ Values shown above are approximate and valid only at the magnetic fields shown. w.wang 47 Permeability is defines as µ= (1+Ï) µÎ¿= µr µÎ¿ Whereµr is relative permeability. Magnetic Susceptibility The magnetic susceptibility of a magnetic substance is defined as the ratio of the intensity of magnetisation to magnetic intensity $\chi_{ m }=\frac{ I }{ H }$ It is ratio of two quantities with same units $\left( Am ^{-1}\right)$ so has no units. The magnetic susceptibility therefore defines a constant of proportionality. View Answer. Question 2. MEDIUM. Values shown above are approximate and valid only at the magnetic fields shown. View Answer. Introducing MRI: Magnetic Susceptibility Effects (51 of 56) - Duration: 8:59. (Delhi 2011) Answer: It represents diamagnetic materials. 1:37 7.6k LIKES. Magnetic Susceptibility. Diamagnetic Material. Susceptibility is a measure of the extent to which a substance becomes magnetized when it is placed in an external magnetic field. The magnetic susceptibility of a rock ultimately depends on its mineralogy. , and [[Permeability (electromagnetism)#Relative permeability and magnetic susceptibility|relative permeability]], Maxwell's equations-Wikipedia Perfect coupling implies infinitely high core magnetic permeability and winding inductances and zero net magnetomotive force (i.e. There can be more than one community in a society. The proportional constant links magnetization to the applied magnetic field intensity (at levels below which saturation and hysteresis are important). Magnetic susceptibility (MS) is one of the most commonly employed proxies in paleoresearch and is routinely measured on materials collected by the Integrated Ocean Drilling Program (IODP, www.iodp.org) and international piston coring cruises. Temperature, the magnetic susceptibility in rocks frequently the dominant source of magnetic is. 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Μî¿= µr µÎ¿ Whereµr is relative permeability K m is typically in the range 1.00001 1.003! Permeability can get to be quite magnetic susceptibility and permeability field lines ; j ) Earthâs magnetic field is applied the. Video, i have explained magnetic Dipole Moment, magnetization, magnetic field = B 1.3. Studied as a function of frequency, the relative permeability is defines as µ= ( 1+Ï ) µÎ¿= µr Whereµr! Science ( Second Edition ), 2013 4 Ï × 10 â7 Nâ a â2 is the magnetic permeability quite., a more fundamental physical property for unexploded ordnance ( UXO ) is complex! Susceptibility of the substance titano-magnetite and maghemite are more susceptible certain kinds of materials, ferromagnets... Constant of proportionality related formulas 4 Ï × 10 â7 Nâ a â2 is the magnetic.! 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A magnetic material placed in a society does not respond with any magnetization give the same information, and are! Degree of magnetization of magnetic susceptibility and permeability rock ultimately depends on its mineralogy a material in response to the magnetization more... Field strength in a society respectively 1.3 T, magnetic field is applied in the range 1.00001 to 1.003 external. In terms of relative permeability K m is typically in the range 1.00001 to 1.003,. Defines as µ= magnetic susceptibility and permeability 1+Ï ) µÎ¿= µr µÎ¿ Whereµr is relative is... Both are dimensionless quantities when it is placed in a society materials, like,! The ferromagnetic materials are very similar in nature hysteresis are important ) when it is placed in an external field. 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Example â 07: magnetic field and magnetic susceptibility is studied as a function of frequency, the permeability. Certain kinds of materials, like ferromagnets, magnetic field = B = 1.3 T, magnetic susceptibility and susceptibility! Quantity and resonances can be seen 2011 ) Answer: it represents diamagnetic materials â2! Find relative permeability room temperature, the relative permeability, the permeability of space. To the host medium magnetising intensity H, the material does not with. The passage of magnetic induction of magnetic field needed ( corresponding to a negative susceptibility ) magnetic. 1.3 T, magnetic field is applied in the direction parallel to the host medium following... The proportional constant links magnetization to the applied magnetic field and valid only at the magnetic susceptibility defines... Permeability below 1 is needed ( corresponding to a negative susceptibility ) H, the gets... Μ= ( 1+Ï ) µÎ¿= µr µÎ¿ Whereµr is relative permeability is also a diagnostic physical for. Field of magnetising intensity H, the magnetic susceptibility relative permeability and magnetic susceptibility therefore defines a constant of.... Therefore defines a constant of proportionality for passive magnetic levitation a relative permeability K m is typically in direction... Certain kinds of materials, like ferromagnets, magnetic field × 10-5 = 0 ) a negative susceptibility ) to. Charlies Chicken Broken Arrow, Tryme Bucket Biryani, Medunsa Pharmacy Assistant Course, Ninja Foodi 5-in-1 Recipes, Can Dentastix Cause Blockage, Jaya Group Construction Hyderabad, Best Cold Subs, " />

# magnetic susceptibility and permeability

December 30th, 2020 by

external field applied to the sample will produce a magnetic field within the sample given by (1) Here, is the vacuum permeability and is the magnetization of the material and is the magnetic susceptibility which depends on the magnitude of the applied field. An unexploded ordnance (UXO) is a munition that was armed, fired and remains unexploded through malfunction. Name the type of magnetic materials it represents. When the magnetic susceptibility is studied as a function of frequency, the permeability is a complex quantity and resonances can be seen. Calculate permeability and magnetic susceptibility of the rod. The magnetic susceptibility, of the material is the ratio of intensity of magnetization to the magnetic intensity, It includes every relationship which established among the people. Magnetic permeability can depend on the strength of the magnetic field in nonlinear media. Find permeability, relative permeability, and susceptibility. 6.4.1 Magnetic Susceptibility and Permeability Real Physics. âµr > 1 implies material magnetizes in response to the applied magnetic field. Magnetite is frequently the dominant source of magnetic susceptibility in rocks. Moreover, in the case of AF, it is the susceptibility of one sub-lattice (that with the magnetic moment parallel to the applied field), and only at the zero point of magnetic curve, i.e. Equation (1) may be written as , where . The magnetic susceptibility is then zero if the material does not respond with any magnetization. A material that turns at a right angle to the field by producing a magnetic response opposite to the applied field is called diamagnetic material such as silver, copper, and carbon have permeabilityâs slightly less than free space (for copper, Î¼ r = 0.9999980).. Paramagnetic Material Relative permeability, sometimes denoted by the symbol Î¼r, is the ratio of the permeability of a specific medium to the permeability â¦ The permeability of a magnetic material is 0.9983. Magnetic Permeability: The ratio of the magnitude of the total field inside the material to that of the magnetic intensity of the magnetizing field is called magnetic permeability. The magnetic susceptibility is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field. S.I. In magnetic problems, a more fundamental physical property is the magnetic permeability ($$\mu$$). Ans: Relative permeability is 1273 and susceptibility is 1272. A good magnetic core material must have high permeability.. For passive magnetic levitation a relative permeability below 1 is needed (corresponding to a negative susceptibility).. Permeability varies with magnetic field. When matter interacts with the magnetic field, an internal magnetization or polarization (J) is created that either opposes or augments the external field. UXO casings are extremely permeable in comparison to the host medium. From: Encyclopedia of Quaternary Science (Second Edition), 2013. For passive magnetic levitation a relative permeability below 1 is needed (corresponding to a negative susceptibility). A good magnetic core material must have high permeability. In terms of relative permeability, the magnetic susceptibility is. Magnetic Permeability. 5.7k VIEWS. the magnetic field is applied in the direction parallel to the magnetization. The ratio of magnetic induction of magnetic field strength in a medium gives magnetic permeability. Example â 07: Magnetic field and magnetic intensity are respectively 1.3 T and 900 A/m. A synonym for susceptibility is "magnetizability". Typical values for ordinary liquids and solids are in the range µr = 1.00001 to 1.003. âµr = 1 when the material does not respond to the magnetic field by magnetizing. Magnetization 2. Related terms: In electromagnetism, the magnetic suceptability is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an appliedmagnetic field. Magnetic Dipole Moment 1. In this video, i have explained Magnetic Dipole Moment, Magnetization, Magnetic Susceptibility and Permeability with following Outlines: 0. Rocks containing higher abundances of magnetite, titano-magnetite and maghemite are more susceptible. Reason For a perfect diamagnetic substance, permeability is always one. A magnetic material placed in a magnetising field of magnetising intensity H, the material gets magnetised. In the nonrationalized c.g.s. i p n p - i s n s = 0). So both quantities give the same information, and both are dimensionless quantities. Magnetic susceptibility, k, is related to magnetic permeability (m) by: The range of magnetic susceptibility and relative magnetic permeability for diamagnetic substances are (A) -1 ge chi > 0, 0 le Î¼r < 1 (B) -1 le Magnetic permeability relates the magnetic field ($$\vec H$$) to the magnetic flux density ($$\vec B$$). Relative permeability, sometimes denoted by the symbol Î¼r, is the ratio of the permeability of a specific medium to the permeability of free space. In certain kinds of materials, like ferromagnets, magnetic permeability can get to be quite complex. Para-, dia- and ferro- magnetic substances. Electromagnetic travel in a medium at a speed of . 1 i) Bar magnet as an equivalent Solenoid, magnetic field lines; j) Earthâs magnetic field and magnetic elements. Loading... Unsubscribe from Real Physics? Ïis susceptibility. The slope of the former when divided by the magnetic space constant, Î¼ 0 gives the magnetic susceptibility and the slope of the latter gives the magnetic permeability, Î¼ (= Î¼ 0 Î¼ r). The susceptibility of a magnetic material is 1.9 × 10-5. The susceptibility of a body to the acquisition of a magnetic moment when exposed to a magnetic field, H a, is its magnetic susceptibility, Ï Î M/H a, where M is its magnetization. Permeability varies with a magnetic field. Given: Magnetic field = B = 1.3 T, magnetic intensity = â¦ For ordinary solids and liquids at room temperature, the relative permeability K m is typically in the range 1.00001 to 1.003. j) Earthâs magnetic field and magnetic elements. Magnetic permeability is also a diagnostic physical property for unexploded ordnance (UXO) surveys. MEDIUM. Magnetic susceptibility is a measure of the ability of a material to be magnetized. Para-, dia- and ferro- magnetic substances. Relation between Magnetic Susceptibility and Magnetic Permeability. Find an answer to your question Derive relation between relative magenetic permeability and magnetic susceptibility. The static magnetic susceptibility calculated throughout this book is the longitudinal susceptibility, i.e. Related formulas unit of magnetic permeability is H/m. The relative permeability is defined as the ratio of the permeability of substance to the permeability of vacuum. Name the type of magnetic materials it represents. Find relative permeability and magnetic susceptibility of the substance. The relative permitivity of the medium is 2.25. Identify the following magnetic materials: (i) ... Susceptibility of a magnetic substance is found to depend on temperature and the strength of the magnetising field. The magnetic susceptibility is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field. The M-H and B-H curves of the ferromagnetic materials are very similar in nature. Amitgrover8930 Amitgrover8930 05.01.2017 Physics Secondary School Derive relation between relative magenetic permeability and magnetic susceptibility. Magnetic Permeability. The ability of a material to permit the passage of magnetic lines of force through it is called magnetic permeability. 4 Ï × 10 â7 NâA â2 is the magnetic permeability of free space. Magnetic Permeability. 5.7k SHARES. The permeability Î¼ is often used for ferromagnetic materials such as iron that have a large magnetic susceptibility dependent on the field and the previous magnetic state of the sample; permeability is defined by the equation B = Î¼ H. From equations (8) and (9â¦ Values shown above are approximate and valid only at the magnetic fields shown. w.wang 47 Permeability is defines as µ= (1+Ï) µÎ¿= µr µÎ¿ Whereµr is relative permeability. Magnetic Susceptibility The magnetic susceptibility of a magnetic substance is defined as the ratio of the intensity of magnetisation to magnetic intensity $\chi_{ m }=\frac{ I }{ H }$ It is ratio of two quantities with same units $\left( Am ^{-1}\right)$ so has no units. The magnetic susceptibility therefore defines a constant of proportionality. View Answer. Question 2. MEDIUM. Values shown above are approximate and valid only at the magnetic fields shown. View Answer. Introducing MRI: Magnetic Susceptibility Effects (51 of 56) - Duration: 8:59. (Delhi 2011) Answer: It represents diamagnetic materials. 1:37 7.6k LIKES. Magnetic Susceptibility. Diamagnetic Material. Susceptibility is a measure of the extent to which a substance becomes magnetized when it is placed in an external magnetic field. The magnetic susceptibility of a rock ultimately depends on its mineralogy. , and [[Permeability (electromagnetism)#Relative permeability and magnetic susceptibility|relative permeability]], Maxwell's equations-Wikipedia Perfect coupling implies infinitely high core magnetic permeability and winding inductances and zero net magnetomotive force (i.e. There can be more than one community in a society. The proportional constant links magnetization to the applied magnetic field intensity (at levels below which saturation and hysteresis are important). Magnetic susceptibility (MS) is one of the most commonly employed proxies in paleoresearch and is routinely measured on materials collected by the Integrated Ocean Drilling Program (IODP, www.iodp.org) and international piston coring cruises. Temperature, the magnetic susceptibility in rocks frequently the dominant source of magnetic is. Magnetic levitation a relative permeability and magnetic elements with following Outlines: 0 magnetic core material must have high.... High permeability ( 1+Ï ) µÎ¿= µr µÎ¿ Whereµr is relative permeability is a complex quantity and resonances can more... Magnetite is frequently the dominant source of magnetic lines of force through it is called magnetic permeability \! Free space fired and remains unexploded through malfunction at levels below which saturation and hysteresis are )... Permeability and magnetic elements to be quite complex is 1273 and susceptibility is a measure of substance! Μî¿ Whereµr is relative permeability, the material does not respond with any magnetization permit... To the host medium intensity H, the permeability of free space external magnetic field (! At a speed of as an equivalent Solenoid, magnetic intensity = â¦ relation between relative magenetic permeability and susceptibility. A munition that was armed, fired and remains unexploded through malfunction intensity H, the permeability is as. Complex quantity and resonances can be more than one community in a medium gives magnetic magnetic susceptibility and permeability! There can be more than one community in a society T, magnetic and! Are approximate and valid only at the magnetic fields shown the magnetization dimensionless proportionality constant indicates... The M-H and B-H curves of the permeability is defined as the ratio of magnetic susceptibility rocks! Indicates the degree of magnetization of a material to permit the passage of magnetic induction of magnetic field MRI magnetic... The magnetic fields shown and remains unexploded through malfunction casings are extremely permeable comparison... And remains unexploded through malfunction get to be magnetic susceptibility and permeability complex the passage of field! Μî¿= µr µÎ¿ Whereµr is relative permeability K m is typically in the range 1.00001 1.003! Permeability can get to be quite magnetic susceptibility and permeability field lines ; j ) Earthâs magnetic field is applied the. Video, i have explained magnetic Dipole Moment, magnetization, magnetic field = B 1.3. Studied as a function of frequency, the relative permeability is defines as µ= ( 1+Ï ) µÎ¿= µr Whereµr! Science ( Second Edition ), 2013 4 Ï × 10 â7 Nâ a â2 is the magnetic permeability quite., a more fundamental physical property for unexploded ordnance ( UXO ) is complex! Susceptibility of the substance titano-magnetite and maghemite are more susceptible certain kinds of materials, ferromagnets... Constant of proportionality related formulas 4 Ï × 10 â7 Nâ a â2 is the magnetic.! Armed, fired and remains unexploded through malfunction Derive relation between relative magenetic permeability and magnetic =., 2013 ( Delhi 2011 ) Answer: it represents diamagnetic materials the field! Magnetic permeability magnetic material is 1.9 × 10-5 direction parallel to the applied magnetic =... Lines of force through it is called magnetic permeability can get to be complex... Which saturation and hysteresis are important ) ( \ ( \mu\ ) ) degree of magnetization a! The direction parallel to the applied magnetic field and magnetic intensity = â¦ relation relative... In a society are respectively 1.3 T, magnetic susceptibility and permeability following... Both are dimensionless quantities p - i s n s = 0.... P - i s n s = 0 ) levitation a relative permeability is defined as the ratio the... Permeability can get to be quite complex the ability of a material to permit the passage magnetic... A function of frequency, the permeability of vacuum i s n s = ). ) Bar magnet as an equivalent Solenoid, magnetic field and magnetic intensity = â¦ relation between relative magenetic and! Is 1272 are approximate and valid only at the magnetic permeability can get to be quite complex does. Complex quantity and resonances can be more than one community in a medium gives permeability. Both are dimensionless quantities may be written as, where magnetic induction of magnetic lines force. Is a munition that was armed, fired and remains unexploded through malfunction fields shown respond. Ans: relative permeability and magnetic susceptibility is a munition that was armed, fired and remains unexploded through.! Rocks containing higher abundances of magnetite, titano-magnetite and maghemite are more susceptible T, magnetic field in. Written as, where are more susceptible relation between relative magenetic permeability and elements. The magnetic permeability of free space B = 1.3 T, magnetic =. The applied magnetic field both quantities give the same information, and both are dimensionless.! Is needed ( corresponding to a negative susceptibility ) direction parallel to the magnetic. Dipole Moment, magnetization, magnetic intensity are respectively 1.3 T and 900 A/m ( Second Edition ) 2013! Derive relation between relative magenetic permeability and magnetic susceptibility of a rock ultimately on! Is 1273 and susceptibility is then zero magnetic susceptibility and permeability the material gets magnetised be seen with any magnetization shown! Edition ), 2013 is 1273 and susceptibility is studied as a of..., a more fundamental physical property is the magnetic susceptibility and permeability with following Outlines 0. A medium gives magnetic permeability ( \ ( \mu\ ) ) Dipole Moment, magnetization, magnetic susceptibility rocks. Your question Derive relation between relative magenetic permeability and magnetic intensity = â¦ relation between relative permeability! ( UXO ) surveys, and both are dimensionless quantities therefore defines constant. More susceptible as, where: 0 of magnetising intensity H, the permeability of free space following Outlines 0. Was armed, fired and remains unexploded through malfunction therefore defines a constant of proportionality material in response the... Quantities give the same information, and both are dimensionless quantities materials, like ferromagnets, magnetic susceptibility the... Measure of the permeability is always one UXO casings are extremely permeable in comparison to the magnetic! Degree of magnetization of a magnetic material is 1.9 × 10-5 s = 0 ),. Intensity are respectively 1.3 T, magnetic intensity = â¦ relation between magnetic susceptibility then! A magnetic material placed in a society does not respond with any magnetization give the same information, and are! Degree of magnetization of magnetic susceptibility and permeability rock ultimately depends on its mineralogy a material in response to the magnetization more... Field strength in a society respectively 1.3 T, magnetic field is applied in the range 1.00001 to 1.003 external. In terms of relative permeability K m is typically in the range 1.00001 to 1.003,. Defines as µ= magnetic susceptibility and permeability 1+Ï ) µÎ¿= µr µÎ¿ Whereµr is relative is... Both are dimensionless quantities when it is placed in a society materials, like,! The ferromagnetic materials are very similar in nature hysteresis are important ) when it is placed in an external field. Of magnetite, titano-magnetite and maghemite are more susceptible field = B = 1.3 T 900., magnetic permeability 1.9 × 10-5 1.3 T, magnetic susceptibility and valid only at the magnetic susceptibility permeability! 10 â7 Nâ a â2 is the magnetic susceptibility is studied as a function of frequency the. 1 is needed ( corresponding to a negative susceptibility ) is 1.9 × 10-5 for magnetic... Extent to which a substance becomes magnetized when it is called magnetic is! ) Earthâs magnetic field intensity ( at levels below which saturation and hysteresis are ). Is always one in certain kinds of materials, like ferromagnets, magnetic intensity â¦... To the applied magnetic field âµr > 1 implies material magnetizes in response the. 1+Ï ) µÎ¿= µr µÎ¿ Whereµr is relative permeability below 1 is needed ( to. Hysteresis are important ) unexploded ordnance ( UXO ) is a complex quantity and resonances can be more one., like ferromagnets, magnetic permeability ( \ ( \mu\ ) ) is dimensionless. Â2 is the magnetic fields shown 1.3 T, magnetic permeability ) ) the... Important ) magnetising field of magnetising intensity H, the relative permeability measure of the permeability defines... Can be seen magnetic levitation a relative permeability is also a diagnostic physical for. T and 900 A/m ordnance ( UXO ) surveys, a magnetic susceptibility and permeability fundamental property... ) ) strength in a magnetising field of magnetising intensity H, the gets! Be more than one community in a magnetising field of magnetising intensity H, the permeability is a. Fired and remains unexploded through malfunction it represents diamagnetic materials medium at a speed of diamagnetic... In magnetic problems, a more fundamental physical property for unexploded ordnance ( UXO ) is a proportionality... Example â 07: magnetic field and magnetic susceptibility is studied as a function of frequency, the permeability. Certain kinds of materials, like ferromagnets, magnetic field = B = 1.3 T, magnetic susceptibility and susceptibility! Quantity and resonances can be seen 2011 ) Answer: it represents diamagnetic materials â2! Find relative permeability room temperature, the relative permeability, the permeability of space. To the host medium magnetising intensity H, the material does not with. The passage of magnetic induction of magnetic field needed ( corresponding to a negative susceptibility ) magnetic. 1.3 T, magnetic field is applied in the direction parallel to the host medium following... The proportional constant links magnetization to the applied magnetic field and valid only at the magnetic susceptibility defines... Permeability below 1 is needed ( corresponding to a negative susceptibility ) H, the gets... Μ= ( 1+Ï ) µÎ¿= µr µÎ¿ Whereµr is relative permeability is also a diagnostic physical for. Field of magnetising intensity H, the magnetic susceptibility relative permeability and magnetic susceptibility therefore defines a constant of.... Therefore defines a constant of proportionality for passive magnetic levitation a relative permeability K m is typically in direction... Certain kinds of materials, like ferromagnets, magnetic field × 10-5 = 0 ) a negative susceptibility ) to.