# Calculating the current in an inductor (AC)

Homework Statement:
A 100mH inductor is connected directly to a voltage source whose voltage is given by
v = 0V for t<0s
and
v = 5(1-e^(-t)) V for T =>0s

The inductor current at t=0 s is zero. Calculate the inductor current at t=0.4 s
Relevant Equations:
v = 5(1-e^(-t))
I integrated the second equation given in the form (integral)di= 1/L * (integral) V *dt and I got an answer of 3.52 for the current at 0.4 seconds, anyone can let me know if this is correct?

TSny
Homework Helper
Gold Member
I get the same result. Should you include units with your answer?

scizzzro
I get the same result. Should you include units with your answer?

Thanks, it says for just a number for inductor current without units just for this question

TSny
DaveE