The rms value of the voltage U(t)= 3 + 4cos(3t)
A. 5 V.
B. 4.123 V.
C. 7 V.
D. {3 + 2(1.141)} V.
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Answer: B
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The rms value of the voltage U(t)= 3 + 4cos(3t)
A. 5 V.
B. 4.123 V.
C. 7 V.
D. {3 + 2(1.141)} V.
Answer: B
Share your understanding of this question with the correct explanation.