Lead section I believe that the following sentence When current is applied to the capacitor electric charges of equal magnitude but opposite polarity build up on each plate is more accurate than this version When charge is made to flow into the capacitor electric charges of equal magnitude but opposite polarity build up on each plate You said in your edit summary that charge flows current is a flow implying that current doesn t flow verb You are correct so it s a good thing the original version didn t claim that current flows Also the phrase charge is made to flow into the capacitor isn t really accurate as overall charge neither leaves nor enters the capacitor Regards