Alternating CurrentEasy
Question
A condenser of capacity C is charged to a potential difference of V1. The plates of the condenser are then connected to an ideal inductor of inductance L. The current through the inductor when the potential difference across the condenser reduces to V2 is :-
Options
A.
B.
C.
D.
Solution
Decresaing in potential energy of capacitor = increasing in potential energy of inductor.
⇒
CV12 -
CV22 =
LI2
⇒ I =
⇒
⇒ I =
Create a free account to view solution
View Solution FreeMore Alternating Current Questions
40. An inductor 20 mH, a capacitor 50 μF and a resistor 40 Ω are connected in series across a source of emf V ...To an ac power supply of 220 V at 50 Hz , a resistor of $20\Omega$, a capacitor of reactance $25\Omega$ and an inductor ...If the current through an inductor of inductance L is given by I = I0 sinωt, then the voltage across inductor will ...The primary of a transformer has 40 turns when an input voltage of 20V is applied, the output voltage is 25 Volt. The nu...A coil has an inductance of H and is joined in series with a resistance of 220 Ω. When an alternating e.m.f. of 220...