Mechanical energy is supplied to a d.c. generator at the rate of 4200 J/s. The generator delivers 32·2 A at 120 V.
(i) What is the percentage efficiency of the generator ?
(ii) How much energy is lost per minute of operation ?
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Mechanical energy is supplied to a d.c. generator at the rate of 4200 J/s. The generator delivers 32·2 A at 120 V.
(i) What is the percentage efficiency of the generator ?
(ii) How much energy is lost per minute of operation ?

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