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Consider the following types of digital voltmeters 1 Ramp type 2...

This question belongs to Electronics And Communications Engineering Measurement And Instrumentation
Measurement and Instrumentation
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Consider the following types of digital voltmeters:
1. Ramp type
2. Dual slope integrating type
3. Integrating type using voltage to frequency conversion
4. Successive approximation type
5. Servo balanced potentiometer type
Which of these require a fixed reference voltage at the comparator stage?

Answer & Solution
Correct Answer: Option C
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