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Energy and Power

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

5.6 Wh
0.938 Wh
938 Wh
56.25 Wh

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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
If you used 400 W of power for 30 h, you have used

12 kWh
1.2 kWh
1.3 kWh
13.3 kWh

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Energy and Power
In 40 kW, there are

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

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Energy and Power
In 0.025 W, there are

0.00025 mW
25 mW
2,500 µW
25 kW

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Energy and Power
How many watt-hours represent 65 W used for 18 h?

11.7 Wh
1,170 Wh
117,000 Wh
11,700 Wh

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MORE MCQ ON Energy and Power

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