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प्रश्न
An a.c generator generates an emf 'ε' where ε = 314 Sin (50πt) volt. Calculate the frequency of emf ε.
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उत्तर
Since e = 314 sin 50 πt V
∴ ω = 50 π
Hence, frequency, f = `(50pi)/(2pi)` = 25 Hz or Rad s-1
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