How do light travels
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The current is the quantity of charge Q flowing through a certain point of the wire in a time interval of 
:
So, by using this relationship and I=1.40 A, we can find the charge passing any point in the wire in 1 second:
To find how many electrons corresponds to this charge, we should divide this value by the charge of a single electron (
):
electrons
So, by using this relationship and I=1.40 A, we can find the charge passing any point in the wire in 1 second:
To find how many electrons corresponds to this charge, we should divide this value by the charge of a single electron (