# Electrical Engineering - Energy and Power

Exercise : Energy and Power - General Questions
6.
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
21 Ah
58 Ah
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
A 15 V source is connected across a 12 resistor. How much energy is used in three minutes?
938 Wh
0.938 Wh
56.25 Wh
5.6 Wh
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
At the end of a 14 day period, your utility bill shows that you have used 18 kWh. What is your average daily power?
1.286 kWh
12.85 kWh
535 kWh
252 kWh
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
A 120 resistor must carry a maximum current of 25 mA. Its rating should be at least
4.8 W
150 mW
15 mW
480 mW
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
If you used 400 W of power for 30 h, you have used
1.3 kWh
13.3 kWh
1.2 kWh
12 kWh
Answer: Option
Explanation:
No answer description is available. Let's discuss.