Electro Magnetic Induction And Alternating Currents Question 136

Question: The voltage of an ac source varies with time according to the equation V=100sin 100πtcos100πt where t is in seconds and V is in volts. Then [MP PMT 1996; 2000]

Options:

A) The peak voltage of the source is 100 volts

B) The peak voltage of the source is 50 volts

C) The peak voltage of the source is 100/2 volts

D) The frequency of the source is 50 Hz

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Answer:

Correct Answer: B

Solution:

V=50×2,sin,100πt,cos,100πt=50sin200πt
V0=50,Volts and ν=100Hz



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