R.M.S value of the sinusoidal waveform q(t)=2.11cos(87.25t+78π÷478.2 – McqOptions

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1.	R.M.S value of the sinusoidal waveform q(t)=2.11cos(87.25t+78π÷478.23).
A.	1.49 V
B.	1.56 V
C.	1.12 V
D.	1.78 V
Answer» B.

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