Answer:
3.75 x 10^20
Step-by-step explanation:
Let us use the formula for the current I=Q/t
where I represents current, Q represents charge, t represents time
Substitute the value of current and time into the equation.
You should remember to convert time from minutes to seconds as seconds is the SI unit of time.
Substituting in the given equation
0.5 = Q/2X60
0.5 = Q/120
Rearranging the equation
Q = 0.5 x 120
Q = 60 C
The charge on an electron is 1.6 x 10^-19 C
Divide the total charge, 60 C by the charge on 1 electron to arrive at the total number of electrons
Number of electrons flowing through the wire = 60/(1.6x10^-19) = 3.75 x 10^20 electrons