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Magnetic flux in a circuite containing a...

Magnetic flux in a circuite containing a coil of resistance `2Omega`change from `2.0Wb` to `10 Wb` in `0.2 sec`. The charge passed through the coil in this time is

A

5.0 C

B

4.0 C

C

2.5 C

D

4.5 C

Text Solution

Verified by Experts

The correct Answer is:
C
`e=(dQ)/(dt),e/R=-(dQ)/(dt)R`
`e/R.dt=-(dQ)/R=(10-5)/2=5/2=2.5C`
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NARAYNA-ELECTROMAGNETIC INDUCTION-EXERCISE-1 (H.W)
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