There is a net passage of 4.3 x 1018 electrons by a point in a wire conductor in 0.14 s. What is the current in the wire?
To calculate the current in the wire, we need to use the formula for current:
I = q/t
Where:
I = current (in Amperes)
q = charge (in Coulombs)
t = time (in seconds)
Given that there is a net passage of 4.3 x 10^18 electrons, we first need to calculate the total charge transferred. Since one electron has a charge of 1.6 x 10^-19 Coulombs, the total charge transferred would be:
q = (4.3 x 10^18 electrons) * (1.6 x 10^-19 Coulombs/electron)
q = 6.88 x 10^-1 Coulombs
Now, we can calculate the current:
I = (6.88 x 10^-1 Coulombs) / (0.14 s)
I = 4.914 x 10^-1 Amperes
Therefore, the current in the wire is 0.4914 Amperes.