The voltage in an inductor circuit is given by V = 10 Cos 2\(\pi \)t V. What will be the current in the circuit if the inductor has value 44 mH?
Answer & explanation
Correct answer: option 3
I = V/wL = 10 Cos 2\(\pi \)t V/2\(\pi \) x 44 mH = 5 Cos 2\(\pi \)t V
As current lags voltage by \(\pi \)/2, I = 5 Cos 3/2\(\pi \)t V