A non conducting disc of mass m and radius R has total

Last updated: 6/12/2023

A non conducting disc of mass m and radius R has total charge Q which is uniformly distributed over its surface If it rotat with constant angular velocity w about its own axis i e axis passing through centre and perpendicular to its plane Then 0 Electric field at centre of disc is Q 4 ER HOQW 2 R The magnetic field at centre of disc is None of these The magnetic dipole moment of disc is QWR 2 4