When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between two of diametrically opposite points will be :

Question

Dr. Abubacker · Accepted Answer

[Solution from source] Each semicircle has resistance R/2 and the two halves are in parallel between diametrically opposite points: (R/2 × R/2)/(R/2 + R/2) = R/4. R/2 is the resistance of only one half. Answer (1).

Q. When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between two of diametrically opposite points will be :

Explanation

Reviewed by Dr. Abubacker

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