"capacitors cannot dissipate power, even though current can flow through them. because the voltage and current are 90° out of phase". I read this in a book but couldn't understand its meaning. Can anyone explain it to me.
Thanks in advance
Of course this is an idealization and only true of an "ideal
capacitor". Real ones have conduction losses in the plates
and dielectric losses in the insulator. And while the capacitor
(ideal) may not dissipate power, the current it imposes will
cause that power to be dissipated in the source.