1.

When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between any two of diametrically opposite points will be [CBSE PMT 2005]

A.         \[\frac{R}{4}\]          
B.         \[\frac{R}{8}\]
C.         \[4R\]                           
D.         \[\frac{R}{2}\]
Answer» B.         \[\frac{R}{8}\]


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