Electro Magnetic Induction And Alternating Currents Question 94

Question: An alternating current is given by the equation i=i1cosω,t+i2sinω,t . The r.m.s. current is given by [MP PMT 1994]

Options:

A) 12(i1+i2)

B) 12(ii+i2)2

C) 12(i12+i22)1/2

D) 12(i12+i22)1/2

Show Answer

Answer:

Correct Answer: C

Solution:

irms=i12+i222=12(i12+i22)1/2



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