Question

A metallic wire of resistance 20 ohm is bent to form a square .Find the resistance between the 2 diagonal points .​

Answer 1

Answer:

Since the wire is bend in form of the square and we know that sides of square are equal so each side will have same resistance i.e 5 ohm. Now if we make diagonal two faces in each side of the diagonal will have two sides and resistance will be 10 ohm. As shown below. Hence equivalent resistance is 5 ohm