When a wheel with metal spokes 1.2 m long rotates in a magnetic field of flux density ` 5 xx 10^(-5)` T normal to the plane of the wheel, an e.m.f. of `10^(-2)` V is induced between the rim and the axle. Find the rate of rotation of the wheel.

Explanation

To find the rate of rotation of the wheel, we can use the formula for the induced electromotive force (e.m.f.) in a rotating system within a magnetic field. The relevant formula is:

\[ E = B \cdot L \cdot v \]

Where:
- \(E\) is the induced e.m.f. (in volts),
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