JEE Main 2015PhysicsAlternating CurrentGrowth And Decay Of CurrentmediumMCQ

JEE Main 2015Alternating 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 :

JEE Main 2015 (Offline) Physics - Alternating Current Question 158 English

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.

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Show full solutionCorrect option: C
Correct answer
CJEE Main 2015 (Offline) Physics - Alternating Current Question 158 English Option 3

Step-by-step explanation

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JEE Main 2015 (Offline) Physics - Alternating Current Question 158 English 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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About this question

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.