Questions
The peak value of an alternating emf is given by if volt and its frequency is 50Hz. At a time second, the instantaneous value of the emf is
detailed solution
Correct option is C
Instantaneous value of ac emf is given by E=E0 cosωt; E0=10V; ω=2πf=100π, t=1600 E=10 cosπ6=10×32=53V .Talk to our academic expert!
Similar Questions
The potential difference V and the current i flowing through an instrument in an ac circuit of frequency f are given by volts and I = 2 sin t amperes (where ). The power dissipated in the instrument is
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