Question
Fri May 18, 2012 By:
 

A wire of reistance 10 ohm is bent in form of a closed circle. What is the effective resistance between the two points at the ends of any diameter of circle

Expert Reply
Fri May 18, 2012

The wire is bent to form a closed circle So, the two parts are assumed to be  connected in parellel (because they have diff. amount of current that flow through them)

So,equivalent resistance

1/R = 1/5 + 1/5

1/R = 2/5

R = 5/2 = 2.5 ohms

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