An AC generator has a sinusoidal EMF with a maximum value of 28.0 V and a freque

Question

An AC generator has a sinusoidal EMF with a maximum value of 28.0 V and a frequency of 60.0 Hz; the generator is connected to a capacitor of capacitance 5.57 %u03BCF. The resistance in the circuit is small enough to ignore.

(a) What is the maximum value of the current in this AC circuit?

A

(b) At the instant of time for which the current in this circuit is a maximum, what is the EMF of the generator?

V

(c) At the instant of time for which the EMF of the generator is %u22129.8000 V and increasing in absolute value, what is the current in the circuit?

A

(d) At the same instant of time as in part (c), what is the power output of the generator?
W

Explanation / Answer

V = 28v

f = 60 Hz

C = 5.57 uF

Xc = 1/2*3.14*60*5.57*10^-6

= 476.468 ohm

hence current i = V/Xc

put the value u ll get the answer....

And for the second part we ve

Power = VI

both V and I are given... just put the value u ll get the answer......

actually the value of V is not clear.. the data is coming in symbolic sign dats why i ve nt calculated...

i ve given u the formulae .

just put the value, u ll get the answer

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