The curved surface of a very long hollow non conducting

Last updated: 6/13/2023

The curved surface of a very long hollow non conducting cylinder of radius R is uniformally charged with surface charge density o A non conducting small circular ring of radius a and mass m having charge q uniformly distributed over its length is placed coaxially inside the hollow cylinder at its centre The arrangement is located in a gravity free space o R o If the cylinder is rotated with a constant angular velocity o about its axis as shown in the figure Then the angular velocity acquired by the ring is