The field is changing at a constant rate K (K>0) and is directed into the plane of the screen.
A charged particle having a charge ' q ' is placed vertically below the center, at a distance d from the center. (d>R)
The particle is moved along the horizontal line which is drawn outside the circle.
The particle is moved by the external agent slowly, up to infinity.
Find the ratio of the work done by the external agent, when d= 2R
to the work done when d=4R
The work is being done against the induced electric field.