What is the effect of adding some boron on how easily a silicon crystal conducts electricity?
A) The crystal becomes more conductive.
B) The crystal becomes less conductive.
C) The boron creates new energy levels for electrons but does not change the crystal's conductivity.

Question

Quizplus · Accepted Answer

Adding boron to silicon introduces acceptor energy levels close to the valence band, which increases the number of charge carriers (holes in this case) and thus enhances the crystal's conductivity.

What Is the Effect of Adding Some Boron on How