Shows a coil placed in a decreasing magnetic field applied perpendicular to the plane of the coil. The magnetic field is decreasing at a rate of `10 T s^(-1)`. Find out current in magnitude and direction of current.

Explanation

`phi=B.A`
`emf=A.(dB)/(dt)=2xx10=20 v`
`therefore i=20//5=4 amp.` From Lenz's law direction of current will be anticlockwise.