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A copper rod of length l is rotated abou...

A copper rod of length l is rotated about one end perpendicular to the uniform magnetic field B with constant angular velocity `omega` . The induced e.m.f. between its two ends is

A

`(1)/(2) B omegal^(2)`

B

`(3)/(4) B omega l^(2)`

C

`B omega l^(2)`

D

`2 B omega l^(2)`

Text Solution

Verified by Experts

The correct Answer is:
a
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Knowledge Check

  • A conducting rod is rotated about one end in a plane perpendicular to a uniform magnetic field with constant angular velocity. The correct graph between the induced emf (e) across the rod and time (t) is

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  • A half metre rod is rotating abou tone fixed end perpendicular to uniform magnetic field 4xx10^(-5)T with angular velocity 720 rpm. The emf induced across its ends is

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  • A rod OA of length l is rotating (about end O) over a conducting ring in crossed magnetic field B with constant angular velocity omega as shown in figure.

    A
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    B
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    C
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