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Identify the factor on which self-inductance does not depend.

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in Physics – Class 12 by (135k points)
Identify the factor on which self-inductance does not depend.

(a) Number of turns

(b) Area of cross-section

(c) Permeability of the core material

(d) The permittivity of the core material

I have been asked this question during an online exam.

My question is taken from Electromagnetic Inductance topic in chapter Electromagnetic Induction of Physics – Class 12

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The correct answer is (d) The permittivity of the core material

The explanation is: Self-inductance is directly proportional to the number of turns and the area of cross-section. The self-inductance of a solenoid increases μr times if it is wound over an iron core of relative permeability μr.

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