Question

Active transducers are classified into ____________

(a) 4 types

(b) 2 types

(c) 6 types

(d) 8 types

The question was asked in an interview for internship.

Question is taken from Classification of Transducers in section Transducers of Electrical Measurements

Answer 1

The correct answer is (a) 4 types

For explanation I would say: Active transducers can be subdivided into four types. They are as follows:

• Photovoltaic

• Thermoelectric

• Piezoelectric

• Electromagnetic.