21) An electrodynamic meter can be used to measure :
Answer is:
d.c. as well as a.c. voltage
Related Measuring MCQ - Electrician (Set-1) with Answers
25) A VTVM is more reliable than a multimeter for measuring voltage across a low impedance because :
Answer is:
all of these
Explanation:
A VTVM is more reliable than a multimeter for measuring voltage across a low impedance because
* its sensitivity is very high
* it offers a high impedance
* it does not alter the voltage measured