

McqMate
Q. |
To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken |
A. | from a source which is not the same as the unknown voltage |
B. | from a battery |
C. | from the same source as the unknown voltage |
D. | any of the above |
Answer» C. from the same source as the unknown voltage |
View all MCQs in
Measurement and Instrumentation