Question

A conducting rod of length $l$ is hinged at point O. It is free to rotate in vertical plane. There exists uniform magnetic field $\overrightarrow{B}$ in horizontal direction. The rod is released from the position shown in figure. The potential difference between two ends of rod is proportional to :

• A. $l^3$
• B. $l^2$
• C. $\sin \theta$
• D. $(\sin \theta {)}^{1/2}$

Answer 1

The correct option is C $\sin \theta$

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