Electrical Engineering - Energy and Power

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Exercise : Energy and Power - General Questions
1.
A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat?
33
330
both resistors
neither resistor
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is
overheated
shorted
open
reversed
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
In 0.025 W, there are
25 kW
0.00025 mW
2,500 µW
25 mW
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
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
201.6 kWh
2.01 kWh
8.4 kWh
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is
8.57%
42.85%
4.28%
85.7%
Answer: Option
Explanation:
No answer description is available. Let's discuss.