A condenser of capacity C is charged to a potential difference of V 1 . 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 V 2 is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
In case of oscillatory discharge of a capacitor through an inductor, charge at instant t is given by
q = q 0 cosωt
where ω = 
∴ cosωt = 
( q = CV)...(i)
Current through the inductor
I = 
= –q 0 ωsinωt
|I| = CV 1 
[1 – cos 2 ωt] 1/2
= 
(using (i))
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
In which of the following devices, the eddy current effect is not used?
A 800 turn coil of effective area is kept perpendicular to a magnetic field . When the plane of t…
A circuit when connected to an AC source of gives a current of . The same circuit when connected …
A cycle wheel of radius is rotated with constant angular velocity of in a region of magnetic fiel…
The magnetic potential energy stored in a certain inductor is 25 , when the current in the inducto…
An inductor , a capacitor and a resistor are connected in series across a source of . The power…