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An AC generator produced an output voltage E = 170 sin 377t volt, where t is in second. The frequency of A.C. voltage is :

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An AC generator produced an output voltage E = 170 sin 377t volt, where t is in second. The frequency of A.C. voltage is : 

(a) 110 Hz 

(b) 60 Hz 

(c) 230 Hz 

(d) 50 Hz

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1 Answer

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Best answer

Correct option (b) 60 Hz

Explanation:

Given equation is 

Comparing (1) with standard equation (2) we get

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v(t) = 120 cos(377t + 45^0)V and i(t) = 10 cos(377t - 10^0)A
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