JEE Main 2022 — Current Electricity Question with Solution
From: JEE Main 2022 (Online) 26th July Morning Shift
Question
Resistances are connected in a meter bridge circuit as shown in the figure. The balancing length is . Now an unknown resistance is connected in series with and new balancing length is found to be measured from the same end. Then the value of will be ____________ .
This question includes a diagram. The text above accompanies the figure.
Enter your answer
Show full solutionCorrect answer: 20
Step-by-step explanation
...... (1)
..... (2)
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Current Electricity chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2022, 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.