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Energy and Power

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

12 V
6 V
1.2 V
120 V

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

1.2 kWh
13.3 kWh
1.3 kWh
12 kWh

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Energy and Power
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?

10 h
1 h
200 h
2,000 h

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

4.28 A
428 A
4.2 A
42.8 A

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Energy and Power
If it takes 400 ms to use 12,000 J of energy, the power is

3 W
30 W
300 kW
30 kW

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

2.1 Ah
0.58 Ah
21 Ah
58 Ah

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MORE MCQ ON Energy and Power

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