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A substance whose relative permeability is less than the permeability of free space is?(a) Diamagnetic(b) Paramagnetic(c) Ferromagnetic(d) Not a magnetic substance |
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Answer» Right choice is (a) Diamagnetic The explanation is: A diamagnetic material creates a magnetic field opposing that of the external magnetic field and it repels the external magnetic field. Hence its relative permeability is less than that of the free space. |
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