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In the circuit shown, the cell is deal. ...

In the circuit shown, the cell is deal. The coil has an inductance of `4H` 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

just after `t=0`

B

after `2s`

C

after `5s`

D

after `10s`

Text Solution

Verified by Experts

The correct Answer is:
D
`e=(Ldi)/(dt) implies dt=L/edi=4/2xx5=10 sec`
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