Question

Define r.m.s. value of ac. Find an expression for it.​

Answer 1

Answer:

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Explanation:

Root mean square (r.m.s.) or virtual value of a.c.: It is that steady current, which when passed through a resistance for a given time will produce the same amount of heat as the alternating current does in the same resistance and in the same time. It is denoted. Irms or Iv.

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