Assertion : Bending a wire does not effect electrical resistance.… - Vidyadip

Question

Assertion : Bending a wire does not effect electrical resistance.
Reason : Resistance of wire is proportional to resistivity of material.

✓

Answer

(a) Resistance wire $R=\rho \frac{l}{A}$. where $\rho$ is resistivity of material which does not depend on the geometry of wire. Since when wire is banded, resistivity, length and area of cross-section do not change, therefore resistance of wire also remain same.

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