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Energy and Power

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

1.2 V
12 V
6 V
120 V

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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
13.2 mW
226 mW
22.6 mW

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

8.7 µA
8.7 mA
87 mA
8.7 A

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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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Energy and Power
A 120 resistor must carry a maximum current of 25 mA. Its rating should be at least

4.8 W
15 mW
150 mW
480 mW

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Energy and Power
A 220 resistor dissipates 3 W. The voltage is

2.5 V
257 V
73.3 V
25.7 V

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MORE MCQ ON Energy and Power

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