Q: An ac voltage is described by V(t) = 10 cos (400πt), find out frequency and RMS value of voltage. एक एसी वोल्टेज V(t) = 10 cos (400πt) के रूप में दर्शाया जाता है, वोल्टेज की आवृत्ति और RMS मान ज्ञात कीजिए–
A.
400Hz, 7.07V
B.
400Hz, 14.14V
C.
200Hz, 14.14V
D.
200Hz, 7.07V
Correct Answer:
Option D -
Explanations:
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