Question

Which sequence lists types of materials in order from least conductive to most conductive?

superconductor conductor semiconductor insulator
insulator conductor semiconductor superconductor
conductor superconductor semiconductor insulator
insulator semiconductor conductor superconductor

Answer 1

insulator → semiconductor → conductor → superconductor

Insulators have the lowest conductivity, semiconductors have moderate conductivity, conductors (metals) are highly conductive, and superconductors have essentially zero resistance (highest conductivity).