Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 3 (Q.No. 16)
16.
Consider the following features of an instrument
  1. suitable for both ac and dc
  2. free from hysteresis and eddy current errors
  3. No waveform and frequency errors
  4. it is essentially a voltmeter
This instrument is
moving iron
moving coil
electrostatic
dynamometer
Answer: Option
Explanation:

Only electrostatic instrument has all these features.

Discussion:
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