JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 29 June 2022, Shift 2, Physics Q37

Question 37 of 90 in this shift, Physics question 7 of 30, Section A.

A capacitor is discharging through a resistor

R

. Consider in time

\mathrm{t_1}

, the energy stored in the capacitor reduces to half of its initial value and in time

\mathrm{t_2}

, the charge stored reduces to one eighth of its initial value. The ratio

\mathrm{t_1/t_2}

will be

(1)1/2
(2)1/3
(3)1/4
(4)1/6Official answer

Official answer

Option 4

NTA final key.

Chapter: Electrostatic Potential and Capacitance
Topic: RC Circuits
Idea tested: Fractional Charge Time Calculation

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.