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Electrical Engineering - Energy and Power

Exercise : Energy and Power - General Questions
21.
The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be
2 W
1 W
5 W
0.5 W
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
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
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
A 75 load uses 2 W of power. The output voltage of the power supply is approximately
120 V
1.2 V
12 V
6 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
When the current through a 12 k resistor is 8 mA, the power is
7.68 mW
768 mW
7.68 W
76.8 W
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
A 68 resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is
132 mW
13.2 mW
22.6 mW
226 mW
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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