Question

question 15 1 pts
which of the following does not change the resistance of a wire?
○ the medium around a wire.
○ the thickness of a wire
○ the temperature of a wire
○ the length of a wire

Explanation:

The resistance of a wire is determined by its intrinsic properties and environmental factors directly affecting its material: length ($R \propto L$), cross-sectional area (related to thickness, $R \propto \frac{1}{A}$), and temperature (changes material resistivity). The surrounding medium does not impact the wire's own resistance.

Answer:

the medium around a wire.