A simple pendulum with bob of mass m and conducting wire of length L swings under gravity through an angle `2 theta`. The earth’s magnetic field component in the direction perpendicular to swing is B . Maximum potential difference induced across the pendulum is

Options

A. `2BL sin ((theta)/(2)) (gL)^(1//2)`
B. `BL sin ((theta)/(2)) (gL)`
C. `BL sin ((theta)/(2)) (gL)^(3//2)`
D. `BL sin ((theta)/(2)) (gL)^(2)`

Answer

A