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Energy and Power

Energy and Power
In 0.025 W, there are

25 kW
0.00025 mW
25 mW
2,500 µW

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Energy and Power
For 12 V and 40 mA, the power is

All of these
480 mW
0.480 W
480,000 µW

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Energy and Power
A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat?

330
both resistors
33
neither resistor

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Energy and Power
A 6 V battery is connected to a 300 load. Under these conditions, it is rated at 40 Ah. How long can it supply current to the load?

2,000 h
10 h
1 h
200 h

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Energy and Power
The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be

0.5 W
2 W
5 W
1 W

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Energy and Power
A 220 resistor dissipates 3 W. The voltage is

25.7 V
2.5 V
73.3 V
257 V

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MORE MCQ ON Energy and Power

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