PH-1161

E.m.f. and potential difference

Physics · Secondary 4 · Medium · E.m.f. and potential difference

A small generator produces an average output power of 60 W when it delivers a steady current of 0.50 A to a lamp. Assuming all the power is electrical, calculate the e.m.f. of the generator.

$120\,\text{V}$
$30\,\text{V}$
$0.0083\,\text{V}$
$180\,\text{V}$

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