JEE Main 2026 — Current Electricity Question with Solution
JEE Main 2026 (23 January Shift 1)
Question
A wire of uniform resistance is bent into a circle of radius and another piece of wire with length is connected between points and as shown in figure. The equivalent resistance between points and is .
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
The wire bent into a circle of radius has resistance for the semicircular arcs, and the straight wire of length has resistance . The three paths between A and B (two semicircular arcs of the circle and one straight wire through center) are in parallel.
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This is a previous-year question from JEE Main 2026, 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.