JEE Main 2015 — Alternating Current Question with Solution
From: JEE Main 2015 (Offline)
Question
An circuit is equivalent to a damped pendulum. In an circuit the capacitor is charged to and then connected to the and as shown below :

If a student plots graphs of the square of maximum charge on the capacitor with time for two different values and of then which of the following represents this graph correctly ?
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: C

Step-by-step explanation
From damped harmonic oscillator, the amplitude is
given by
Double differential equation
Hence damping will be faster for lesser self inductance.
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This is a previous-year question from JEE Main 2015, covering the Alternating Current chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.