Question

The current in the circuit shown in the figure below equals 73.0% of the peak current at t = 6.00 ms. What is the smallest source frequency that gives this current

Answer 1

does this have anything to do with a time constant?

Answer 2

if so, then im thinking it has something to do with

1 - e^-u = .73

e^-u = .27

u = -log(.27) = 6ms/tau

just not sure if this is the right approach is all

Answer 3

Did not see the "circuit shown" . Sounds like it may be a trtansient type question if that is the case the posts above.