railway DFCCIL Executive 2025 Mock Test Electrical and Electronics Measurements Measurement of R/L/C Using Bridge Circuits Basic Galvanometer
Which of the following is the frequency range used for Vibration Galvanometer?
1
very high frequency in Mega Hz
2
very low frequency in less than 5 Hz
3
low audio frequency in above 5 Hz to 1 KHz
4
high audio frequency in above 1 KHz