Question

The resistance of a wire does not depend on its :

• A. Length
• B. Area of cross-section
• C. Shape
• D. Material

Hint:

Resistance depends on length, area, and material — not on how the wire is bent or shaped.

Answer 1

The Correct Option is C

The resistance ($R$) of a wire is given by: \[ R = \rho \frac{l}{A} \] where: - $\rho$ is the resistivity of the material (depends on the material) - $l$ is the length of the wire 
- $A$ is the area of cross-section of the wire 
Thus, resistance depends on the length, the cross-sectional area, and the material (through resistivity). 
The shape of the wire (like whether it’s coiled or bent) does not affect its resistance as long as its length, area of cross-section and material remain the same. Therefore, the correct answer is Shape.