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Title: A capacitor is connected to an AC generator. As generator's frequency is increased what happens to the current? Post by: buddyl91 on Sep 13, 2012 A capacitor is connected to an AC generator. As the generator's frequency is increased, what happens to the current in the capacitor?
A) The current increases B) The current decreases C) The current does not change. Also state why you choose that and give formula is possible to back up explanation. Thanks Title: A capacitor is connected to an AC generator. As generator's frequency is increased what happens to the current? Post by: oaklandowns on Sep 13, 2012 As the frequency increases so will the current through the capacitor.
Title: A capacitor is connected to an AC generator. As generator's frequency is increased what happens to the current? Post by: lexus3431 on Sep 13, 2012 Let,
voltage applied to capacitor C Farad is : e = Em*sin(2pift) volts Xc = 1/2pi*f*C ohms current, i = e/Xc = (2pifC)Em*sin(2pift) Amps ........... [1] Now, let, frequency = 2f Hz, then, current, i2 = (4pi*fC)Em*sin(2*pi*ft) ...................... [2] Comparing [1] and [2], we get, that : A) The current INCREASES >================< ANSWER |