In a free space, a thin rod carrying uniformly distributed negative charge `-q` is placed
Channel: Doubtnut
Date: 26/07/2020

In a free space, a thin rod carrying uniformly distributed negative charge `-q` is placed symmetrically along the axis of a tin ring of radius R varrying uniformly dostributed charge Q. The mass of the rod is m and length is `l=2R`. The ring is fixed and the rod is free to move. The rod is displaced slightly along the axis of the ring and then released. Find the period T to the small amplitude oscillations of the rod.  img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/BMS_V03_C01_S01_045_Q01.png" width="80%"