Below are the answers key for the Multiple Choice Questions (MCQs) in Chapter 12: Phase from the book Teach Yourself Electricity and Electronics, 5th edition by Stan Gibilisco.
1. The electrons always flow in the same direction.
2. Always has the same general appearance.
3. Is a representation of the rate of change.
4. 1/2 revolution.
5. 360.
6. 180.
7. 0.00000333 second.
8. 0.0000631 second.
9. 8 V peak, in phase with the composites.
10. Moving it to the right or left by 1⁄4 cycle.
11. Phase opposition.
12. 4 V, in phase with wave Y.
13. Wave Y is 1⁄8 cycle behind wave X.
14. Y is 120 degrees earlier than X.
15. X lags Y by 135 degrees.
16. B.
17. Peak amplitude.
18. Phase difference.
19. Peak amplitude.
20. Rotation counterclockwise.
