In a simple series circuit containing a battery and a lamp, a charge of 29 C passes a point in 38 seconds. How many electrons flow through the lamp in 18 seconds?
Give your answer to 2 decimal places.
[assume the battery has zero internal resistance and the charge carried by an electron is 1.6 x 10-19 C]
2006-12-05 02:17:57 · 3 answers · asked by wot_up_peeps2000 2 in Science & Mathematics ➔ Physics
29 Coulombs in 38 seconds
= 0.763 Coulombs per second
* 18 seconds = 13.74 Coulombs
13.74 Coulombs / 1.6E-19 Coulombs per electron
= 8.59E+19 electrons
2006-12-05 02:32:26 · answer #1 · answered by chopchubes 4 · 1⤊ 0⤋
What do you mean -give your answer !
This is not a test, and anyway you should take into account temperature, conductivity, power loss, and all sorts if you need an accurate figure.
Oh - read a book about it please.
2006-12-05 03:02:35 · answer #2 · answered by Bob the Boat 6 · 0⤊ 1⤋
Is it the falkland islands?
2006-12-05 02:29:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋