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Energy and Power

Energy and Power
In 0.025 W, there are

2,500 µW
0.00025 mW
25 mW
25 kW

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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
7.68 W
76.8 W

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Energy and Power
If you used 600 W of power for 60 h, you have used

36 kWh
10 kWh
3.6 kWh
1 kWh

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

2,000 W
200 W
20 W
2 W

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Energy and Power
How many watt-hours represent 65 W used for 18 h?

11.7 Wh
1,170 Wh
11,700 Wh
117,000 Wh

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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?

33
330
neither resistor
both resistors

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MORE MCQ ON Energy and Power

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