If a current is flowing with a value of 5.9 A, how much electron charge passes any single point in 25 seconds?
A) 1.9 x 1020 e
To find the amount of electron charge passing a single point, we can use the equation:
Q = I * t
Where:
Q is the amount of charge in coulombs
I is the current in amperes
t is the time in seconds
Given:
I = 5.9 A
t = 25 s
Substituting these values into the equation, we have:
Q = 5.9 A * 25 s
Calculating the result:
Q = 147.5 C
However, we need to find the amount of electron charge passing a single point, not the total charge.
We know that one electron has a charge of approximately 1.6 x 10^(-19) C.
Dividing the total charge by the charge of a single electron:
Q / (1.6 x 10^(-19) C) = 147.5 C / (1.6 x 10^(-19) C)
Calculating the result:
Q / (1.6 x 10^(-19) C) ≈ 9.22 x 10^18 electrons
Therefore, approximately 9.22 x 10^18 electrons pass a single point in 25 seconds.