railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Digital Voltmeters
In a digital voltmeter, the oscillator frequency is 400 KHz. The Ramp voltage falls from 8V to 0V in 20 ms. what is the number of pulses Counted by counter?
1
8000
2
4000
3
3200
4
1600