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How to modify a low voltage DC voltmeter to low voltage ac voltmeter

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+1 vote
in Linear Integrated Circuits by (37.1k points)
How to modify a low voltage DC voltmeter to low voltage ac voltmeter

(a) Add a full wave rectifier in the feedback loop

(b) Add a half wave rectifier in the feedback loop

(c) Add a square wave rectifier in the feedback loop

(d) Add a sine wave rectifier in the feedback loop

I got this question by my school principal while I was bunking the class.

My enquiry is from Voltage to Current Converter with Floating and Grounded Load topic in section Operational Amplifier Applications of Linear Integrated Circuits

1 Answer

0 votes
by (39.8k points)
The correct option is (a) Add a full wave rectifier in the feedback loop

Let me simplify it: A combination of an ammeter and a full wave rectifier can be employed in the feedback loop to form an ac voltmeter.

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