Q 12-07-018NEETJEE MainEasy
In a purely inductive ac circuit, the current
Answer: (A) lags the voltage by $\dfrac{\pi}{2}$
Concept. For an inductor $V = L\dfrac{dI}{dt}$, so the voltage peaks a quarter cycle before the current.
Step 1. Phase. The current lags the voltage by $\dfrac{\pi}{2}$.
Answer. Lags the voltage by $\dfrac{\pi}{2}$ (Option A).
Solution by Sreeraj P, M.Sc Physics