A conducting ring of mass m and radius r has a weightless

Last updated: 6/26/2023

A conducting ring of mass m and radius r has a weightless conducting rod PQ of length 2r and resistance 2R attached to it along its diameter It is pivoted at its centre C with its plane vertical and two blocks of masses m and 2m are suspended by means of a light in extensible string passing over it as shown in the figure The ring is free to rotate about C and the system is placed in a magnetic field B into the plane of the ring A circuit is now completed by connecting the ring at A and C to a battery of emf V Find the value of V in Volts so that the system remains static Take m 100 kg B 100 Tesla r 20 X P X X X X m X X A O X X X X 2m Resistance of PQ 2R