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In the circuit shown in fig., the cell i...

In the circuit shown in fig., the cell is ideal. The coil has an inductance of `4 H` and zero resistance. `F` is a fuse of zero resistance and will blow when the current through it reaches `5 A`. The switch is closed at `t= 0`. The fuse will blow

A

after 1s

B

after 2s

C

after 5s

D

after 10s

Text Solution

Verified by Experts

The correct Answer is:
D
`E=(Ldi)/(dt)impliesdi=(epsilon)/(L) dtimpliesi=(epsilon)/(L)t`
`5=(2)/(4)timpliest=10sec`
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