Question

If 400 mA current flows through the bulb for 1 minute, how many electrons will pass through it ? (Ans : 15 x 10¹⁹ electrons)Solve the given example.

Answer 1

use
$we \: know \: that \\ q = it \\ and \: q = ne \\then \\ it = ne \\ n = \frac{it}{e} \\ chnge \: t \: in \: second \: and \: i \: in \: amp$