Two thin semicircular ring of radius R 2 are smoothly joined

Last updated: 6/2/2023

Two thin semicircular ring of radius R 2 are smoothly joined and is falling with its plane vertical in a horizontal magnetic induction B At the position MNQ the speed of ring is V The potential difference developed across the points M and Q is A zero B BV R2 2 and M is at higher potential C RBV and Q is at higher potential D 2RBV and Q is at higher potential R 2 R 2