When the current changes from +2A to -2A...

When the current changes from +2A to -2A in 0.5 second an emf of 8V is induced in a coil. The coefficient of selfinduction of the coil is

A

`0.1 H`

B

`0.2 H`

C

`0.4 H`

D

`0.8 H`

Text Solution

Verified by Experts

The correct Answer is:

A

`e=L(di)/(dt)implies8=Lxx((2-(-2)))/(0.05)impliesL=0.1H`

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