Of given instruments which of the following instruments is free from hysteresis and Eddy current errors
Of given instruments which of the following instruments is free from hysteresis and Eddy current errors:
- Dynamometer instrument
- Moving iron instrument
- PMMC instrument
- Electrostatic instrument
Correct answer: 4. Electrostatic instrument
Electrostatic instruments don’t employ iron and are hence free from hysteresis and eddy current losses.