First slide

Motional EMF

Question

A student peddles a stationary bicycle. The pedals of the bicycle are attached to a 100 tum coil of area 0.10 m². The coil rotates at half a revolution per second and it is placed in a uniform magnetic field of 0.10 T perpendicular to the axis of rotation of the coil. What is the maximum voltage generated in the coil?

Easy

A

1.314 V
B

1.214 V
C

2.314 V
D

0.314 V

Solution

Maximum voltage $e_{0} = NBA (2 πv)$
= 100 x 0.01 x 0.1 x 2 x 3.14 x 0.5
= 0.314 V
The maximum voltage is 0.314 V.
We urge you to explore such alternative possibilities for power generation.

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