In an AC. co-ordinate potentiometer, the currents in the phase and quadrature potentiometer are adjusted to be_____________?
Correct answer: A. out of phase by 90°
- A. out of phase by 90°
- B. out of phase by 60°
- C. out of phase by 30°
- D. out of phase by 0°
- E. out of phase by 180°
Explanation
An AC coordinate potentiometer resolves voltage into in-phase and quadrature components, so its two potentiometer currents must differ in phase by 90°. These components represent the rectangular form of an AC phasor.
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