Of given instruments which of the following instruments is free from hysteresis and Eddy current errors

by

Of given instruments which of the following instruments is free from hysteresis and Eddy current errors:

  1. Dynamometer instrument
  2. Moving iron instrument
  3. PMMC instrument
  4. Electrostatic instrument

Correct answer: 4. Electrostatic instrument

Electrostatic instruments don’t employ iron and are hence free from hysteresis and eddy current losses.

Leave a Comment