- #1
mandos
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Homework Statement
Calculate the charge which has passed through a point in a circuit when there is a current of 6.3kA for 58 minutes. Calculate the number of electrons passing a point in the circuit.
How to work out the part in blue.
Homework Equations
We're told the charge of one electon is "e = -1.6 x 10^-19 C"
The Attempt at a Solution
Q = I x t
t = 58min = 3480 seconds.
I = 6.3 x 10^3
3480 x 6.3 x 10^3 = 2.2 x 10^7 (rounded up a bit as my college teacher told me to do).
But it's the part in blue I get stuck on. I actually already know the answer (also rounded up slightly I believe) is 1.4*10^26 but it's how I get to that answer using the information "e = -1.6 x 10^-19 C" and "Q = 22 x 10^7"
If someone could show me how to do it, so I can then practice doing so on the other questions I've got and learn it properly. Also, apologies if this is a really moronic question for some of you, browsing around you all seem to be quite intelligent ^^;