Question
Define the term self-inductance. Write its SI unit. Give two factors on which self inductance of an air-core coil depends.
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Answer
Self-inductance of a coil is equal to the total magnetic flux linked with the coil, when unit current passes through it. SI unit of self-inductance is Henry (H).
i. number of turns of the coil
ii. area of cross section and length (geometry)
i. number of turns of the coil
ii. area of cross section and length (geometry)
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