A wire of resistorR is bent into a circular ring of radiusr .Equivalent resistance between two pointsX andY on itscircumference, when angle XOY is alpha, can be given by

A wire of resistorR is bent into a circular ring of radiusr .Equivalen

1.	A wire of resistorR is bent into a circular ring of radiusr .Equivalent resistance between two pointsX andY on itscircumference, when angle XOY is alpha, can be given by
Answer» `(R alpha)/(4pi^(2)) (2PI - alpha)` `(R)/(2pi) (2pi - alpha` `R (2pi - alpha)` `(4pi)/(R alpha) (2pi - alpha)` ANSWER :A

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A wire of resistorR is bent into a circular ring of radiusr .Equivalent resistance between two pointsX andY on itscircumference, when angle XOY is alpha, can be given by

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