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Diamagnetic substances have relative permeability_____________

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Diamagnetic substances have relative permeability_____________

(a) Greater than 1

(b) Less than 1

(c) Equal to 1

(d) Zero

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Asked question is from Relative Permeability in portion Simple Magnetic Circuits of Basic Electrical Engineering

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Correct choice is (b) Less than 1

For explanation: A diamagnetic material creates a magnetic field opposing that of the external magnetic field and it repels the external magnetic field. Hence it has relative permeability less than 1.

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