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What is not a frequency for ac current?

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in Basic Electrical Engineering by (88.7k points)
What is not a frequency for ac current?

(a) 50 Hz

(b) 55 Hz

(c) 0Hz

(d) 60 Hz

This question was addressed to me by my school principal while I was bunking the class.

Origin of the question is Alternating Current in an RLC Circuit in portion Single Phase Series Circuits of Basic Electrical Engineering

1 Answer

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Best answer
The correct answer is (c) 0Hz

Easiest explanation: DC current is a type of constant current so it has frequency of zero hertz.                                                                                                          So, AC current can have rest other frequencies other than zero.

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