ENERGY AND POWER QUIZ

A 68 resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is

13.2 mW

132 mW

22.6 mW

226 mW

TRUE ANSWER : ?
YOUR ANSWER : ?

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

200 W

2,000 W

20 W

2 W

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A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?

201.6 kWh

2.01 kWh

20.16 kWh

8.4 kWh

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YOUR ANSWER : ?

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

15 mW

4.8 W

480 mW

150 mW

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

36 kWh

3.6 kWh

1 kWh

10 kWh

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

76.8 W

7.68 W

768 mW

7.68 mW

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A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is

58 Ah

2.1 Ah

0.58 Ah

21 Ah

TRUE ANSWER : ?
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In 40 kW, there are

0.4 mW

5,000 W

400 W

40,000 W

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

535 kWh

12.85 kWh

252 kWh

1.286 kWh

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How much continuous current can be drawn from a 60 Ah battery for 14 h?

4.2 A

4.28 A

428 A

42.8 A

TRUE ANSWER : ?
YOUR ANSWER : ?

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