JEE Main 2013 — Current Electricity Question with Solution
JEE Main 2013 (09 Apr Online)
Question
In a metre bridge experiment null point is obtained at from one end of the wire when resistance is balanced against another resistance . If , then the new position of the null point from the same end, if one decides to balance a resistance of against , will be close to :
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
From question,
Again,
or
Solving we get
Therefore new position of null point
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This is a previous-year question from JEE Main 2013, 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.