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Saturday, 31 October

JEE Main 2022 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 29 June 2022, Shift 2, Physics Q54

Question 54 of 90 in this shift, Physics question 24 of 30, Section B.

Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance 2000 Ω is used to measure the potential difference across 500 Ω resister, the reading of the voltmeter will be ________ V

The figure, in words

A rectangular circuit loop with a 500 Ω resistor and a 600 Ω resistor in series along the top, and a battery labelled 20 V in the bottom wire.

Official answer

8

NTA final key.

Chapter
Current Electricity
Topic
Kirchhoff's Laws
Idea tested
Voltmeter Loading Effect

Same idea in other shifts

Asked 3× in all
  1. 30 Jan 2024, Shift 2 · Q56Two resistance of 100 Ω100\ \Omega and 200 Ω200\ \Omega are connected in series with a battery of 4 V4\ V and negligible internal resistance . A…MediumNumerical value
  2. 3 Sep 2020, Shift 2 · Q12Two resistors 400 Ω400\,\Omega and 800 Ω800\,\Omega are connected in series across a 6 V battery. The potential difference measured by a…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 108 of the 174 JEE Main shifts held from 2017 to 2026.