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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
0.5 W
1 W

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Energy and Power
How much continuous current can be drawn from a 60 Ah battery for 14 h?

428 A
42.8 A
4.2 A
4.28 A

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

1.2 V
6 V
120 V
12 V

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Energy and Power
When the current through a 12 k resistor is 8 mA, the power is

7.68 mW
768 mW
76.8 W
7.68 W

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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

22.6 mW
132 mW
13.2 mW
226 mW

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