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Self Induction

When current ...

Question

When current flowing in a coil changes from $3 A$ to $2 A$ is one millisecond, $5 v o l t$ emf is induced in it. The self-inductance of the coil will be

A

z e r o

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B

5 k h

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C

5 h

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D

5 m h

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Solution

The correct option is C $5 m h$
As we know,
$E M F = L \times \frac{d i}{d t}$

$5 = L \times \frac{3 - 2}{0.001 s}$

$L = \frac{5}{1000}$

$L = 5 m h$

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