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Energy and Power

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

87 mA
8.7 A
8.7 µA
8.7 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?

938 Wh
5.6 Wh
56.25 Wh
0.938 Wh

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

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

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Energy and Power
In 40 kW, there are

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

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

36 kWh
10 kWh
1 kWh
3.6 kWh

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