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Energy and Power

Energy and Power
In 40 kW, there are

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

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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

2 W
5 W
0.5 W
1 W

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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?

0.938 Wh
5.6 Wh
938 Wh
56.25 Wh

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

87 mA
8.7 mA
8.7 A
8.7 µA

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Energy and Power
A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is

58 Ah
2.1 Ah
0.58 Ah
21 Ah

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Energy and Power
A 75 load uses 2 W of power. The output voltage of the power supply is approximately

120 V
1.2 V
12 V
6 V

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MORE MCQ ON Energy and Power

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