Negative Magnitude Phasor Presentation: Is Erasing the - Sign Correct?

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SUMMARY

The discussion centers on the correct presentation of a phasor with a negative magnitude, specifically -3<38 degrees. The consensus is that the negative sign can be removed by adding or subtracting 180 degrees to the phase angle, resulting in a phase angle that lies within the range of +/-180 degrees. Participants emphasized the importance of modulo arithmetic in certain scenarios to ensure the phase angle remains within the desired range of 0 to 360 degrees.

PREREQUISITES
  • Understanding of phasor representation in electrical engineering
  • Knowledge of phase angle manipulation
  • Familiarity with modulo arithmetic
  • Basic concepts of complex numbers
NEXT STEPS
  • Research phasor transformation techniques in electrical engineering
  • Learn about the implications of phase angle adjustments on circuit behavior
  • Explore advanced applications of modulo arithmetic in signal processing
  • Study the representation of complex numbers in polar form
USEFUL FOR

Electrical engineers, students studying circuit analysis, and professionals working with signal processing who need to understand phasor manipulation and phase angle adjustments.

fbenit1
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If you have a phasor that has a negative magnitude (ie -3<38degrees) what is the best presentation. I believed it was just erasing the - sign and adding or subtracting 180degrees. Correct me if wrong
 
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That's right - just remember the resultant phase angle would lie between +/-180 degrees (or 0 and 360, if that's the way you want to do it) - so you may need to do some modulo arithmetic in some cases.
 
you are right
 

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