The principle on which vector voltmeter is based is_____________?
Correct answer: D. that it measures the amplitude of a single at two points and at the same time measures their phase difference
- A. that it works on the principle of complex variation
- B. that it measures the response of linear ramp voltage
- C. same as digital meter
- D. that it measures the amplitude of a single at two points and at the same time measures their phase difference
Explanation
A vector voltmeter measures the magnitude of a signal and the phase difference between signals at two points, so it gives their voltage relationship as a phasor. This is why it is useful for measuring gain and phase in AC circuits.
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