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Energy and Power

Energy and Power
In 40 kW, there are

40,000 W
5,000 W
0.4 mW
400 W

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Energy and Power
A 3.3 k resistor dissipates 0.25 W. The current is

8.7 A
8.7 mA
8.7 µA
87 mA

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Energy and Power
A 15 V source is connected across a 12 resistor. How much energy is used in three minutes?

56.25 Wh
5.6 Wh
938 Wh
0.938 Wh

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

0.480 W
All of these
480 mW
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
neither resistor
both resistors
33

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Energy and Power
A 120 resistor must carry a maximum current of 25 mA. Its rating should be at least

150 mW
4.8 W
15 mW
480 mW

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MORE MCQ ON Energy and Power

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