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Questions and Answers
What is the frequency of alternating current in a household electrical outlet?
What is the frequency of alternating current in a household electrical outlet?
- 50 Hz (correct)
- 1000 Hz
- 10 Hz
- 120 Hz
What does the root mean square (RMS) value of an alternating current represent?
What does the root mean square (RMS) value of an alternating current represent?
- Effective value of the current (correct)
- Instantaneous value of the current
- Average value of the current
- Peak value of the current
What happens to the reactance of a coil in an alternating current circuit as the frequency increases?
What happens to the reactance of a coil in an alternating current circuit as the frequency increases?
- It remains constant
- It increases
- It fluctuates randomly
- It decreases (correct)
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