Question

a wire of resistance 0.5 ohm is bent into a circle of radius 1m. The same wire is connected across diameter AB. The equivalent resistance is​

Answer 1

Explanation:

Resistance of upper semicircle = Resistance of lower semicircle = 0.5 × (πR) = 0.5 πΩ Resistance of wire AB = 0.5 × 2 = 1 Ω Hence equivalent resistance of A and B is given in the attachment above