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Energy and Power

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

5 W
2 W
1 W
0.5 W

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

480,000 µW
480 mW
0.480 W
All of these

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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
6 V
1.2 V
12 V

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Energy and Power
If you used 600 W of power for 60 h, you have used

3.6 kWh
10 kWh
1 kWh
36 kWh

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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
0.58 Ah
21 Ah
2.1 Ah

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Energy and Power
Three hundred joules of energy are consumed in 15 s. The power is

2 W
2,000 W
20 W
200 W

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MORE MCQ ON Energy and Power

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