AC theoryQuestion 501 of 1506

What are the signs of the X and Y values in quadrant 2?

  1. X positive, Y positive
  2. X negative, Y positive
  3. X negative, Y negative
  4. X positive, Y negative
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Correct answer: X negative, Y positive

Left of the origin is negative on X, above it is positive on Y.

Source: Trigonometry and Single Phase AC Generation for Electricians (Flinn), 2.2: Quadrants

Practice ac theory

Questions last reviewed: 18 October 2026