Technician A says a transistor is an automatic electronic switch with no moving parts. Technician B says an insulator is an element with four or fewer valence electrons. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because a transistor indeed acts as an electronic switch or amplifier with no moving parts. Technician B is incorrect because an insulator is characterized by having five or more valence electrons, not four or fewer.

Technician a Says a Transistor Is an Automatic Electronic Switch