Q.The principle of vector voltmeter is based on

  • AThat it works on the principle of complex variation
  • BThat it measures the response of linear ramp voltage 
  • CSame as digital meter
  • DThat it measures the amplitude of a single at two points and at the same time measures their phase difference 
Correct Answer : (D)

That it measures the amplitude of a single at two points and at the same time measures their phase difference 

Hints :

The principle of vector voltmeter is based on That it measures the amplitude of a single at two points and at the same time measures their phase difference.

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