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Energy and Power

Energy and Power
In 40 kW, there are

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

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Energy and Power
A half-watt is equal to how many milliwatts?

5,000 mW
5 mW
500 mW
50 mW

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

12 kWh
13.3 kWh
1.2 kWh
1.3 kWh

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Energy and Power
A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat?

neither resistor
both resistors
33
330

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

120 V
12 V
1.2 V
6 V

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Energy and Power
In 0.025 W, there are

25 mW
2,500 µW
25 kW
0.00025 mW

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MORE MCQ ON Energy and Power

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