# Electric Circuit

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#1
How do you calculate the number of electrons that must flow in 1 second to give a current of 1 amp?
0
2 years ago
#2
1 Amp equals 1 Coulomb per second

Magnitude of the charge on 1 electron = 1.602x10-19 Coulombs

so the question is basically asking how many electrons make up one coulomb
0
2 years ago
#3
(Original post by automan2017)
How do you calculate the number of electrons that must flow in 1 second to give a current of 1 amp?
Worth knowing the two equations,

and

is the charge in Coulombs, is current in amps and is time in seconds.

is the integer (whole number i.e. 1, 3, 79 etc. not decimals) number of electrons (or protons) and is the electron charge

Equating the two equations as they're both equal to charge, where

Substitute in the values and find
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