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Hey people!.. this is what I've been wondering for a while and couldn't come up with anything (asked my frnds too)

It has been derived in my textbook that when AC is applied to a pure capacitive circuit (i.e. contains only a capacitor)... current leads ahead of the emf by phase difference of pi/2.

Does that imply that even before i "switch on", current will already be flowing? that does sound absurd to me... how can current flow without applying emf...

a better explanation on lagging and leading of phase might help too..

Thank you

PS: I mistakenly typed the topic name as current in "inductive" circuit... sorry!... moderators please help me change it if its possible...

It has been derived in my textbook that when AC is applied to a pure capacitive circuit (i.e. contains only a capacitor)... current leads ahead of the emf by phase difference of pi/2.

Does that imply that even before i "switch on", current will already be flowing? that does sound absurd to me... how can current flow without applying emf...

a better explanation on lagging and leading of phase might help too..

Thank you

PS: I mistakenly typed the topic name as current in "inductive" circuit... sorry!... moderators please help me change it if its possible...

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