Electron drift time in battery-operated device · CAP 2005 #7
Physics · electromagnetism
Problem
When you turn on a battery-operated portable music-playing device, how long must you leave it on for electrons leaving the negative terminal of the battery to reach the positive terminal if their path lies within good conductors?
(a) A few milliseconds; (b) a few tenths of a second;
(c) a few microseconds; (d) a few minutes.