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Mutual Induction

When the self...

Question

When the self-inductance of the primary and secondary coil is doubled, then the mutual inductance of the two coils is :

A

Halved

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B

Doubled

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C

Quadrupled

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D

Reduced to one-fourth

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Solution

The correct option is A Doubled
$M = K \sqrt{L_{1} L_{2}}$
If self-inductance is doubled, then mutual inductance is also doubled.

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