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4 May 2012 08:33:56 IST

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to decrease the speed of fan if we get a resistance in the circuit,will the power increase

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to decrease the speed of fan if we get a resistance in the circuit,will the power increase

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ishita srivastava

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4 May 2012 08:38:43 IST

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but p=(v*v)/R so according to this relation power should decrease

Krishna Gopal Singh

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Joined: 29 Dec 2006

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16 May 2012 21:56:00 IST

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Though net power will decrease, the some of the power will also be wasted. for example if initially the fan was consuming 100 W power, by adding a resistance in series, the fan will take only 60W power but some 20W power will be wasted as heat. So net power loss will be 80W which is less than earliar power loss of 100W

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