Which of the following is not a self-generating transducer?

by
Question:

Which of the following is not a self-generating transducer?

A.

Thermopile

B.

Ionization chamber

C.

Moving coil generator

D.

Photovoltaic cell

Answer» b. Ionization chamber

Note: The above multiple-choice question is for all general and Competitive Exams in India.