Examveda
Examveda

An operational amplifier:

A. can be used to subtract two or more signals

B. can be used to sum two or more signals

C. uses the principle of feedback

D. All of the above

E. None of the above

Answer: Option D


This Question Belongs to Computer Science >> Automation System

Join The Discussion

Related Questions on Automation System

A program language:

A. defines the form of the instruction

B. is always machine dependent

C. is never machine dependent

D. All of the above

E. None of the above

Computer-based controllers:

A. should be built in a modular fashion wherever possible

B. are very difficult to change

C. are very flexible

D. (a) and (c) above

E. None of the above