Q 12-07-048JEE MainJEE Main 2024 (4 Apr, Shift 1)Easy
In an ac circuit, the instantaneous current is zero when the instantaneous voltage is maximum. In this case, the source may be connected to:
A. a pure inductor.
B. a pure capacitor.
C. a pure resistor.
D. a combination of an inductor and a capacitor.
Choose the correct answer from the options given below:
Answer: (D) A, B and D only
Current is zero when voltage is maximum only if the phase difference is $90^\circ$.
This happens for a pure inductor, a pure capacitor, and an LC combination (whose net reactance is purely inductive or capacitive). A resistor keeps current in phase with voltage. So A, B and D.
Solution by Sreeraj P, M.Sc Physics