railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Measurement of Frequency and Power Factor Measurement of Frequency
In a vibrating reed type frequency meter, the reed which will vibrate the most is the one whose natural frequency is equal to
1
four times the frequency of supply
2
the frequency of supply
3
twice the frequency of supply
4
half the frequency of supply