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The magnetic flux linked with a coil, in...

The magnetic flux linked with a coil, in webers, is given by the equation `f=3t^(2)+4t+9`. Then the magnitude of induced e.m.f. at `t=2` second will be

A

4V

B

3V

C

16V

D

9V

Text Solution

Verified by Experts

The correct Answer is:
C
`q=3t^(2)+4T+9`
`|v| =-|(dphi)/(dt)|=6t+4`
`=6xx2+4=12+4=16 ` volt
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