A thin semi-circular conducting ring of radius R is falling with its plane vertical in a…
Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents
A thin semi-circular conducting ring of radius R is falling with its plane vertical in a horizontal magnetic induction \(\overrightarrow{\mathrm{B}}\). At the position MNQ the speed of the ring is v and the potential difference developed across the ring is :
- zero
- BvπR2/2 and M is at higher potential
- πBRv and q is at higher potential
- 2RBv and q is at higher potential
Answer
(D) 2 RBv and q is at higher potential
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