Alternating CurrentHard
Question
In an AC generator, a coil with N turns, all of the same area A and total resistance R, rotates with frequency ω in a magnetic field B. The maximum value of emf generated in the coil is -
Options
A.NABRω
B.NAB
C.NABR
D.NABω
Solution
φ= NBA cosωt
∴ e = -
= NBAω sinωt ⇒ emax = NBAω
∴ e = -
= NBAω sinωt ⇒ emax = NBAωCreate a free account to view solution
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