Basics of Electricity

REVIEW 4 ANSWERS

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1. Refer to electric lamp circuits A and B below to answer the following:

The electric lamp in circuit B is performing what two types of work?
x Useful     Skilled
x Wasted   Manual
Complete the following statements:
The heat produced by lamp is ___WASTED___work. The light produced by the lamp is ___USEFUL_____________work. The power (in watts) of the lamp in circuit B is ___60W___

How many kilowatt-hours of work will be performed if the lamp in Circuit B burns for 100 hours? ___6kWh___

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