A wire of uniform cross-section A, length L and resistance R is cut into two equal pieces. The resistivity of each will be?
A wire of uniform cross-section A, length L and resistance R is cut into two equal pieces. The resistivity of each will be?
Explanation
Resistivity after cutting a wire in half:
Resistivity 𝜌 is a material property, independent of shape, size, or length.
When a wire is cut, resistance changes, but resistivity remains the same.