Answer: conducts with low resistance.
- A conducts with low resistance
- B blocks current completely
- C has very high resistance
- D acts as a perfect insulator
Correct answer: A. conducts with low resistance
Explanation: Forward bias lowers the barrier so the diode conducts with low resistance.
Conductors have overlapping bands, semiconductors have a small energy gap that can be bridged by heat or doping, and insulators have a large gap that blocks conduction.
Concept context
Band theory, p-n junction, diodes, transistors, logic gates, and integrated circuits.