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Post:	21

19 Aug 2012 19:39:45 IST

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power

Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics

the driving side of a belt has a tension of 1600N and the slac side has 500N.

the belt turns a pully 40cm in radius at a rate of 300rev/min

this pulleyy drives a dynamo having 90% efficiency how much power is bieng delivered by dyanamo

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Juhi Sharma

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Joined: 22 May 2009

Posts: 2467

19 Aug 2012 19:48:32 IST

Like 0 people liked this

net torque =(1600-500)*.4m

=440

w=10pirad/s

net power delivered=tou * w

=440*10*pi=4400pi

net power generated=.9*4400w

=12.4kW

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