engineering recuitment HPCL Junior Executive 2025 Mock Test Electrical and Electronics Measurements Indicating Instruments PMMC Instrument
Which of the following statements about PMMC instruments is true?
1
If AC supply is given to a PMMC instrument, it will read the RMS value of AC.
2
PMMC consumes very high power.
3
PMMC instruments have a non-uniform scale.
4
There are no hysteresis losses in PMMC instruments.