Explanation: A combination of an ammeter and a full wave rectifier can be employed in the feedback loop to form an ac voltmeter. 9. For a full wave rectification, in a low voltage ac voltmeter, the meter current can be expressed as
A. Io = (1.9×Vin)/R1
B. Io = (3.9×Vin)/R1
C. Io = (0.9×Vin)/R1
D. Io = (2.9×Vin)/R1
Answer:A
Explanation: A combination of an ammeter and a full wave rectifier can be employed in the feedback loop to form an ac voltmeter. 9. For a full wave rectification, in a low voltage ac voltmeter, the meter current can be expressed as
A. Io = (1.9×Vin)/R1 B. Io = (3.9×Vin)/R1 C. Io = (0.9×Vin)/R1 D. Io = (2.9×Vin)/R1
Explanation: For full wave rectification, meter current is expressed as Io = 0.9xVin/R1. Sanfoundry Global Education & Learning Series – Linear Integrated Circuit.