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Energy and Power

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

42.8 A
428 A
4.28 A
4.2 A

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

120 V
12 V
6 V
1.2 V

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Energy and Power
A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is

4.28%
85.7%
8.57%
42.85%

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Energy and Power
The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be

2 W
1 W
0.5 W
5 W

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

open
overheated
shorted
reversed

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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

0.58 Ah
2.1 Ah
58 Ah
21 Ah

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MORE MCQ ON Energy and Power

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