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The magnetic flux linked with a coil var...

The magnetic flux linked with a coil varies as `phi=3t^(2)+4t+9.` Find the magnitude of the emf induced at t = 2S.

Text Solution

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Given `Phi = 3t^(2)+4t+9`, t=2s
The magbnitude of induced emf is
`epsilon(dphi)/(dt)=(d)/(dt) (3t^(2)4t+9)= 6t+4=6xx2+4=16` volts
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