question archive An ac millivoltmeter has a range of 0-1000 mV and its accuracy is 10
Subject:Electrical EngineeringPrice:2.87 Bought7
An ac millivoltmeter has a range of 0-1000 mV and its accuracy is 10.5% of full-scale deflection. If the input voltage of the instrument is 400mV, the output of the instrument would be?
Answer:
Deviation=1000*10.5/100=105
Thus for 200mV input output of the instrument is 200mV+-(105)
200+105=305
200-105=95
Hence output between 305 mV to 95mV