A coil of 100 loops is pulled in 0.01 s between the pole of a magnet, where is area intercepts the flux of `300 mu` Wb, to a place where it intercepts the flux of `100 mu` Wb. Caluculate the e.m.f. induced in the coil.

Explanation

Here, `N = 100, dt = 0.01 s`
`phi_(1) = 300 mu Wb = 300 xx 10^(-6) Wb`,
`phi_(2) = 100 xx 10^(-6) Wb`
`e = -N((phi_(2) - phi_(1)))/(dt)`
`= (100 (100 - 300) 10^(-6))/(0.01)`
`= (2 xx 10^(-2))/(0.01) = 2 V`