A rectangular coil of `20` turns and area of cross-section `25 cm^(2)` has a resistance of `100 ohm`. If a magnetic field which is perpendicular to the plane of the coil changes at the rate of `1000` telsa per second, the current in the coil is

Options

A. 1A
B. 50A
C. 0.5A
D. 5A

Answer

C

Explanation

`i=(e )/(R )=((nAdB)/(dt))/(R )=(20xx(25xx10^(-4))xx1000)/(100)=0.5 A`