Measurements and Instrumentation - Engineering

Q1:

Four voltmeters have following specifications. If accuracy is main consideration which is the best?

A 100 V, 2 mA

B 100 V, 100 mA

C 100 V, 1 mA

D 100 V, 0.1 mA

ANS:D - 100 V, 0.1 mA

Since the current drawn is minimum, the accuracy is maximum.