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Self-inductance depends on ________

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Self-inductance depends on ________

(a) permeability

(b) permittivity

(c) plank’s constant

(d) rydberg constant

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This interesting question is from Inductive Transducer topic in chapter Transducers of Electrical Measurements

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Right answer is (a) permeability

For explanation: The self-inductance of an inductor is obtained by making use of the relation

L = ^N^2⁄S

where, N is the number of coil

            S is the reluctance of the coil (A/Wb)

As reluctance depends on the permeability, the self-inductance of a coil depends on the permeability.

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