A wheel with 10 spokes, each of length $L$ meters, is rotated with a uniform angular velocity $\omega$ in a plane normal to the magnetic field $B$. What is the emf induced between the axle and the rim of the wheel?

Question

$\frac{1}{2} N \omega B L^2$

$\frac{1}{2} \omega B L^2$

$\omega B L^2$

$N \omega B L^2$

Solution

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