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What is not a frequency for ac current?(a) 50 Hz(b) 55 Hz(c) 0Hz(d) 60 HzThis 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

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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