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Friday, 9 October

JEE Main 2023 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 13 April 2023, Shift 2, Physics Q56

Question 56 of 90 in this shift, Physics question 26 of 30, Section B.

In the circuit shown, the energy stored in the capacitor is n μn\ \muJ. The value of n is ______.

The figure, in words

12 V battery connected across a diamond (bridge) network: upper-left arm 3 ohm, upper-right arm 4 ohm, lower-left arm 9 ohm, lower-right arm 2 ohm; a 6 microfarad capacitor connects the left and right junctions of the diamond (bridge arm).

Official answer

75

NTA final key.

Chapter
Current Electricity
Topic
Wheatstone Bridge
Idea tested
DC Bridge with Capacitors

Same topic in other shifts

All Wheatstone Bridge questions
  1. 6 Apr 2026, Shift 2 · Q48A moving coil of galvanometer when shunted with 2 Ω\Omega resistance gives a full scale deflection for a current of 500 mA. When a…MediumNumerical value
  2. 7 Apr 2025, Shift 1 · Q36A wire of resistance R is bent into a triangular pyramid as shown in figure with each segment having same length. The resistance between…MediumDiagram basedHas a figure
  3. 9 Apr 2024, Shift 1 · Q50A galvanometer has a coil of resistance 200 Ω200\ \Omega with a full scale deflection at 20 μ20\ \muA. The value of resistance to be added to…EasySingle correct
  4. 29 Jan 2024, Shift 1 · Q42A galvanometer having coil resistance 10 Ω10\,\Omega shows a full scale deflection for a current of 3mA. For it to measure a current of 8A,…EasySingle correct
  5. 29 Jan 2024, Shift 1 · Q50The deflection in moving coil galvanometer falls from 25 divisions to 5 division when a shunt of 24 Ω24\,\Omega is applied. The resistance…MediumSingle correct
  6. 31 Jan 2024, Shift 2 · Q49The resistance per centimeter of a meter bridge wire is rr, with X ΩX\ \Omega resistance in left gap. Balancing length from left end is at…MediumSingle correct

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.