Question

The distinction between conductors, insulators and semiconductors is largely concerned with

• A. their ability to conduct current
• B. the type of crystal lattice
• C. binding energy of their electrons
• D. relative widths of their energy gaps

Answer 1

The correct option is D relative widths of their energy gaps

According to band theory, distinction between conductors, insulators and semiconductors is based on relative width of energy gaps between valence band and conduction band.