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Saturday, 31 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 3 August 2021, Shift 2, Physics Q28

Question 28 of 90 in this shift, Physics question 28 of 30, Section B.

As the switch S is closed in the circuit shown in figure, current passed through it is ‾\underline{\hspace{2em}} A.

The figure, in words

10 V terminal connected through a 4 ohm resistor to a junction; the junction connects through a 2 ohm resistor to a 5 V terminal; from the junction a branch with a 2 ohm resistor and switch S leads to ground.

Official answer

2

NTA final key.

Chapter
Current Electricity
Topic
Kirchhoff's Laws
Idea tested
Nodal Analysis Technique

Same idea in other shifts

Asked 2× in all
  1. 6 Apr 2023, Shift 2 · Q49Figure shows a part of an electric circuit. The potentials at points aa, bb and cc are 30 V, 12 V and 2 V respectively. The current…MediumSingle correctHas a figure

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 108 of the 174 JEE Main shifts held from 2017 to 2026.