Question

Out of two wires X and Y shown below , which one has greater resistance ? Justify your answer.

Answer 1

Resistance =
R=rL/A
So R is directly proportion to length of the wire
hence Resistance of wire y is more than X and area is constant r is resistivity

Answer 2

Explanation:

The resistance behaves like an opposing force. It opposes the current flowing in the electric circuit.

The resistance of a wire is given by :

$R=\rho\dfrac{l}{A}$

Its depends on the length and the area of cross section of the wire.

In the given figure, the length of wire Y is double of wire X. So, the resistance of wire Y is more as compared to wire X. If the area of the both wire are same then the resistances of wire Y is more.