ENERGY AND POWER QUIZ

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

15 mW

150 mW

480 mW

4.8 W

TRUE ANSWER : ?
YOUR ANSWER : ?

In 40 kW, there are

0.4 mW

5,000 W

400 W

40,000 W

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

overheated

reversed

shorted

open

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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?

20.16 kWh

2.01 kWh

201.6 kWh

8.4 kWh

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A 3.3 k resistor dissipates 0.25 W. The current is

8.7 µA

87 mA

8.7 mA

8.7 A

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

10 kWh

1 kWh

36 kWh

3.6 kWh

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In 0.025 W, there are

25 mW

25 kW

0.00025 mW

2,500 µW

TRUE ANSWER : ?
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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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Three hundred joules of energy are consumed in 15 s. The power is

200 W

2,000 W

2 W

20 W

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A 6 V battery is connected to a 300 load. Under these conditions, it is rated at 40 Ah. How long can it supply current to the load?

2,000 h

200 h

10 h

1 h

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