A thin circular ring of area `A` is perpendicular to uniform magnetic field of induction `B`. `A`
Channel: Doubtnut
Date: 2020-01-19

A thin circular ring of area `A` is perpendicular to uniform magnetic field of induction `B`. `A` small cut is made in the ring and a galavanometer is connected across the ends such that the total resistance of circuit is `R`. When the ring is suddenly sqeezed to zero area, the charge flowing through galvanometer is: