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A wire is bent to form a semi-circle of ...

A wire is bent to form a semi-circle of radius a. the wire rotates about its one end with angular velocity `omega `.Axis of rotation being perpendicular to plane of the semicircle . In the space , a uniform magnetic field of induction B exists along the axis of rotation as shown . The correct statement is :

A

Potential difference between P and Q is equal to `2Bomegaa^2`

B

Potential difference between P and Q is equal to `2pi^2Bomegaa^2`

C

P is at higher potential than Q

D

none of these

Text Solution

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The correct Answer is:
A
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