Question

Basic circuit of multimeter consists ________

(a) of a.c. amplifier

(b) of d.c. amplifier

(c) operational amplifier

(d) power amplifier

The question was posed to me in a job interview.

The question is from Electronic Multimeter in division Electronic Instruments of Electrical Measurements

Answer 1

The correct answer is (b) of d.c. amplifier

To explain I would say: A.C. as well as D.C. voltage, current and resistance can be measured by making use of an electronic multimeter. The basic circuit of a multimeter is made up of d.c. amplifier circuit in the form of a balanced bridge.