A wire of resistance 8 ohms is bent to form a circle. What is the resistance between two diametrically opposite points?
Q1. A wire of resistance 8 ohms is bent to form a circle. What is the resistance between two diametrically opposite points?
Answer: 2 ohms
Explanation: Two 4-ohm resistances in parallel give R_eq = 4*4/(4+4) = 2 ohms.