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Energy and Power

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

7.68 W
76.8 W
7.68 mW
768 mW

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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
0.5 W
5 W
1 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
226 mW
13.2 mW

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Energy and Power
When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is

open
shorted
reversed
overheated

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

25.7 V
257 V
73.3 V
2.5 V

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

1.2 kWh
13.3 kWh
1.3 kWh
12 kWh

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MORE MCQ ON Energy and Power

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