A ring of mean radius r and cross sectional area A is made

Last updated: 6/10/2023

A ring of mean radius r and cross sectional area A is made of a perfectly conducting wire Inductance L of the ring is so small that inertia of free electrons cannot be neglected in the current building process The free electron density in the conductor is n mass of an electron is m and modulus of charge on an electron is e Initially the ring is placed in a uniform magnetic field with its plane parallel to induction vector B of the field as shown in the figure Find the current in the ring after it is A turned through an angle 90 18 B 4 2xrm 2 O B