Question

Calculate the current when a charge of 475C
flows though a cell in 2.5 hours.

Answer 1

Answer = 0.05A

Using the equation Q=IT and rearranging it to find current to become I=Q/T, where:

Q = charge (Coulombs)
I = current (Amperes)
T = time (seconds)

Known values from the question:

Q = 475

T = 2.5 x 3600 (converting the 2.5 hours into seconds as this is the SI unit for time)

T = 9000

Substitute the known values into the equation:

I = Q/T

I = 475/9000

I = 0.05 (rounded to 1 s.f)