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A rod is hinged at its centre and rotate...

A rod is hinged at its centre and rotated by applying a constant torque starting from rest. The power developed by the external torque as a function of time is :

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
B
`P = tau. omega rArr P = tau alpha trArr P = tau. (tau)/(I) t rArr P = (tau^(2))/(I) t rArr P prop t`.
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