Question

There are two copper wires of equal length.The radius of one is twice the other.Find the ratio of their resistances​

Answer 1

Answer:

2:1

Explanation:

radius of a wire is directly proportional to its resistance

let r of one wire be x

r of other wire is 2x

ratio = x:2x = 1:2

Answer 2

Answer:

No .of copper wire = 2.

Radius of both wire=X @nd 2y

Resistance of wire in ratio

1:2