

McqMate
Q. |
It is required to measure the true open circuit e.m.f. of a battery. The best device is |
A. | d.c. voltmeter |
B. | ammeter and a known resistance |
C. | d.c. potentiometer |
D. | none of the above |
Answer» C. d.c. potentiometer |
View all MCQs in
Electromagnetic InterferenceNo comments yet