Question

The resistivity of a certain material is 0.6 Ω m. The material is most likely to be ______.

Options

• an insulator

• a superconductor

• a conductor

• a semiconductor

Answer 1

The resistivity of a certain material is 0.6 Ω m. The material is most likely to be a semiconductor.

Explanation:

Resistivity measures how strongly a material opposes electric current. A value of 0.6 Ω m is intermediate, too high for a conductor (which is around 10⁻⁸ Ω m) and too low for an insulator (which exceeds 10⁻¹⁰ Ω m). This moderate range is characteristic of semiconductors, and pure germanium has this exact resistivity at room temperature.