A quarter horse power motor runs at a speed of 600 r.p.m. Assuming 40% – McqOptions

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1.	A quarter horse power motor runs at a speed of 600 r.p.m. Assuming 40% efficiency the work done by the motor in one rotation will be [Kerala PET 2002]
A.	7.46 J
B.	7400 J
C.	7.46 ergs
D.	74.6 J
Answer» B. 7400 J

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