A cycle wheel of radius 0.5 m is rotated with constant velocity of 10 rad/sec in a region of magnetic field of 0.1 T which is perpendicular to the plane of the wheel the emf generated between its centre and the rim is...
[Ans. 0.125] {please elaborate}
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Given:
A cycle wheel of radius 0.5 m is rotated with constant velocity of 10 rad/sec in a region of magnetic field of 0.1 T
To find:
Which is perpendicular to the plane of the wheel the emf generated between its centre and the rim is...
Solution:
From given, we have,
The magnetic field = B = 0.1 T
The radius of a cycle wheel = r = 0.5 m
The rotational velocity = w = 10 rad/sec
We use the formula,
Induced EMF is given by,
∈ = 1/2Bwr²
substituting the given data, we get,
∈ = 1/2 × 0.1 × 10 × (0.5)²
∴∈ = 0.125 volt
The emf generated between its centre and the rim is 0.125 volt.
The emf at all the points will remain the same.
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