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Friday, 9 October

JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 9 April 2024, Shift 2, Physics Q60

Question 60 of 90 in this shift, Physics question 30 of 30, Section B.

To determine the resistance (RR) of a wire, a circuit is designed below. The VV-II characteristic curve for this circuit is plotted for the voltmeter and the ammeter readings as shown in figure. The value of RR is ___________ Ω\Omega.

The figure, in words

Circuit: a variable battery E in series with resistor R and a milliammeter (mA); a voltmeter V is connected in parallel across R, and a 10 kilo-ohm resistor is connected in parallel with the voltmeter branch (across R). Graph: I (mA) vs V (volt), straight line through the origin passing through (4 V, 2 mA), (6 V, 3 mA) and (8 V, 4 mA).

Official answer

2500

NTA final key.

Chapter
Current Electricity
Topic
Ohm's Law and Resistance
Idea tested
Ohm's Law and V-I Graphs

Same idea in other shifts

Asked 2× in all
  1. 29 Jun 2022, Shift 1 · Q55The variation of applied potential and current flowing through a given wire is shown in figure. The length of wire is 31.4 cm. The…MediumNumerical valueHas 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 42 of the 174 JEE Main shifts held from 2017 to 2026.