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A chock coil has an inductance of 4H and...

A chock coil has an inductance of `4H` and a resistance of `2 Omega`. It is connected to a battery of `12 V` and negaligible internal resistance. The time taken for the current to become `3.78 A` is nearly

A

`8 s`

B

`.^(1)//_(2)`

C

`2 s`

D

`4 s`

Text Solution

Verified by Experts

`i = i_(0)[1-e^(-(R )/(L)t)]`
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