Question
Physics Question on Phasor diagrams
In an ideal parallel LC circuit, the capacitor is charged by connecting it to a DC source which is then disconnected. -The current in the circuit:
A
becomes zero instantaneously
B
grows monotonically,
C
decays monotonically
D
oscillates instantaneously
Answer
grows monotonically,
Explanation
Solution
When a charged capacitor is discharged through an inductor of negligble ohmic resistance, electrical oscillations takes place in the circuit. These are called L - C oscillations.