Question: A solid shaft of 250 mm diameter has the same cross-section area as the hollow shaft of the same material with the inside diameter of

A solid shaft of 250 mm diameter has the same cross-section area as the hollow shaft of the same material
with the inside diameter of 200 mm. find
a. The ratio of power transmitted by the two shafts for same angular velocity
b. Compare the angle of twist in equal lengths of these shafts, when stressed to the same intensity.

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