A bicycle is resting on its stand in the east - west direction and the rear wheel is rotated at an angular speed of 100 revolutions per minute. If the length of each spoke is 30.0 cm and the horizontal comonet of the earth's magnetic field is `2.0 X 10^(-5) T`, find the emf induced between the axis and the outer end of a spoke. Neglect centripetal force acting on the free electrons of the spoke.

Explanation

To solve the problem of finding the induced EMF between the axis and the outer end of a spoke of a bicycle wheel, we will follow these steps:

### Step 1: Convert the given quantities to SI units
- The length of each spoke is given as 30.0 cm. We need to convert this to meters:
\[ L = 30.0 \, \text{cm} = 30.0 \times 10^{-2} \, \text{m} = 0.30 \, \text{m} \]

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