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Energy and Power

Energy and Power
In 0.025 W, there are

25 mW
2,500 µW
0.00025 mW
25 kW

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Energy and Power
A 68 resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is

132 mW
226 mW
22.6 mW
13.2 mW

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Energy and Power
If it takes 400 ms to use 12,000 J of energy, the power is

3 W
30 kW
30 W
300 kW

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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
1 W
0.5 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
56.25 Wh
938 Wh

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

2,000 W
20 W
2 W
200 W

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