JEE Main 2019PhysicsCurrent ElectricityMeter BridgemediumMCQ

JEE Main 2019 — Current Electricity Question with Solution

From: JEE Main 2019 (Online) 11th January Evening Slot

Question

In the experimental set up of metre bridge shown in the figure, the null point is obtained at a distance of 40 cm from A. If a 10 resistor is connected in series with R1, the null point shifts by 10 cm. The resistance that should be connected in parallel with (R1 + 10) such that the null point shifts back to its initial position is :

JEE Main 2019 (Online) 11th January Evening Slot Physics - Current Electricity Question 266 English

This question includes a diagram. The text above accompanies the figure.

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Show full solutionCorrect option: D
Correct answer
D60

Step-by-step explanation

                                      . . .(i)

     . . .(ii)





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About this question

This is a previous-year question from JEE Main 2019, covering the Current Electricity chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.