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Energy and Power

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
226 mW
13.2 mW
22.6 mW

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

5 mW
500 mW
50 mW
5,000 mW

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

1 kWh
3.6 kWh
36 kWh
10 kWh

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Energy and Power
A 15 V source is connected across a 12 resistor. How much energy is used in three minutes?

56.25 Wh
5.6 Wh
938 Wh
0.938 Wh

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Energy and Power
At the end of a 14 day period, your utility bill shows that you have used 18 kWh. What is your average daily power?

1.286 kWh
252 kWh
535 kWh
12.85 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?

330
neither resistor
33
both resistors

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MORE MCQ ON Energy and Power

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