A positively charged thin metal ring of radius R is fixed in the xy plane with its centre
Channel: Doubtnut
Date: 2020-07-05

A positively charged thin metal ring of radius R is fixed in the xy plane with its centre at the origin O. A negatively charged particle P is released from rest at the point `(0, 0, z_0)` where `z_0gt0`. Then the motion of P is