CBSE Class 12-science Answered
An alternating emf from a source is given by V= 314sin314t. What is the rms value of emf and angular frequency of the source
Asked by safalmodi1086 | 22 Jan, 2021, 01:46: PM
Expert Answer
Alternating EMF = vm sin(ωt ) = 314 sin(314t)
where vm = 314 V is peak value of alternating EMF and ω is angular frequency
RMS value of EMF = vm / √2 = ( 314 / √2 ) V = 222 V
Angular frequency ω = 314 rad/s
Answered by Thiyagarajan K | 22 Jan, 2021, 01:59: PM
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