AC theoryQuestion 507 of 1506

A rectangular vector in quadrant 2 is converted to polar form. How is the polar angle found from the calculated angle?

  1. 180 plus the calculated angle
  2. 180 minus the calculated angle
  3. 360 minus the calculated angle
  4. The calculated angle itself
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Correct answer: 180 minus the calculated angle

Quadrant 2 angles lie between 90 and 180 degrees.

Source: Trigonometry and Single Phase AC Generation for Electricians (Flinn), 2.4: Vector Addition

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Questions last reviewed: 18 October 2026