JEE Main 2003 — Current Electricity Question with Solution
JEE Main 2003
Question
The length of a wire of a potentiometer is , and the e.m.f. of its standard cell is volt. It is employed to measure the e.m.f of a battery whose internal resistance is . If the balance point is obtained at from the positive end, the e.m.f. of the battery is
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Potential
length Potential difference
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This is a previous-year question from JEE Main 2003, 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.