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A rectangular coil of 20 turns and area ...

A rectangular coil of 20 turns and area of cross - section 25 sq. cm has a resistance of `100 Omega`. If a magnetic field which is perpendicular to the plane of coil changes at a rate of 1000 tesla per second, the current in the coil is

A

`1A`

B

50 A

C

0.5 A

D

`5A`

Text Solution

Verified by Experts

The correct Answer is:
C
Induced current, `i=(epsilon)/(R )=((NAdB)/(dt))/(R )`
`=(20xx(25xx10^(-4))xx100)/(100)=0.5A`
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