Question

What are the current carriers in semiconductors?

(a) Electrons and Protons

(b) Electrons and Nucleons

(c) Electrons and Photons

(d) Electrons and Holes

I got this question by my school teacher while I was bunking the class.

This interesting question is from Classification of Semiconductors in section Semiconductors of Engineering Physics II

Answer 1

Right choice is (d) Electrons and Holes

To explain I would say: Electrons and holes are the two current carriers in semiconductors. Electrons are negatively charged while holes are positively charged. Their movement gives rise to a current in the semiconductor.