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The magnetic flux linked with a coil at ...

The magnetic flux linked with a coil at any instant 't' is given by `phi - 5t - 100 t+300`, the e.m.f. induced in the coil at t = 2 second is

A

`-40 V`

B

`40 V`

C

`140 V`

D

`300 V`

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Verified by Experts

The correct Answer is:
B
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