A uniform ring has a radius R with centre C. A nd B are 2 pts on the circumference.such that angle theta is 60^{0}.find the equivalent resistance between pt A and B?
solution) let he resistance of whole ring i.e. 2ΠR be r.therefore the resistance of wire between points a and b is r/6and the reistance of rest part of ring is 5r/6now these two resistances are in parallel combinationthus equivalent resistance will be 5r/36.