Question

In most applications, transistor switches used in place of relays?

(a) They consume less power

(b) They are faster

(c) They are quieter and smaller

(d) All of the Mentioned

The question was posed to me during an interview.

This intriguing question originated from Fast Adder & Serial Adder topic in division Arithmetic Circuits of Digital Circuits

Answer 1

Correct answer is (d) All of the Mentioned

Easy explanation: Transistors are of less consuming power, faster, quieter, smaller and its implementation is too easy. So, in most applications transistor switches are more preferred. And also, transistors can be current-controlled or voltage-controlled depending on our choice.