JEE Main 2013PhysicsCapacitanceHardMCQ

JEE Main 2013 — Capacitance Question with Solution

JEE Main 2013 (07 Apr)

Question

In an LCR circuit as shown below both switches are open initially. Now switch S 1 is closed, S 2 kept open. ( q is charge on the capacitor and τ = RC  is capacitive time constant). Which of the following statement is correct?

Choose an option

Show full solutionCorrect option: A
Correct answer
AAt t = 2 τ ,  q = CV  1 - e - 2

Step-by-step explanation

q = CV 1 - e t / τ
 
At t = 2 τ

q = CV 1 - e - 2

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About this question

This is a previous-year question from JEE Main 2013, covering the Capacitance 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.