NEET Physics Current Electricity Questions Solved

PMT - 2005

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 

(1) R4

(2) R8

(3) 4R

(4) R2 

(1)

RAB=R/22=R4

 

 

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