SSC SSC JE Electrical 2025 Mock Test Series (Paper 1 & Paper 2) Electrical and Electronics Measurements
The frequency range of moving-iron instruments is
1
audio-frequency band 20 Hz to 20 kHz
2
very low-frequency band 10 Hz to 30 kHz
3
low-frequency band 30 Hz to 300 kHz
4
Power frequencies 0 to 125 Hz