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

In summary, a negative magnitude phasor presentation is a method for representing complex numbers on a complex plane, commonly used in electrical engineering and physics. The - sign is erased in order to accurately depict the magnitude, and this is mathematically correct. It is frequently used in various scientific fields to analyze and solve problems involving complex numbers and circuits, and there are no exceptions to erasing the - sign in this type of presentation.
  • #1
fbenit1
3
0
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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  • #2
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.
 
  • #3
you are right
 

1. What is a negative magnitude phasor presentation?

A negative magnitude phasor presentation is a way to represent complex numbers in the form of a vector on a complex plane. It is often used in electrical engineering and physics to analyze circuits and systems.

2. Why is the - sign erased in a negative magnitude phasor presentation?

The - sign is erased because the magnitude of a complex number is always a positive value. In order to accurately represent the magnitude on a complex plane, the - sign is dropped.

3. Is erasing the - sign correct?

Yes, erasing the - sign in a negative magnitude phasor presentation is mathematically correct. It does not change the value of the complex number, but rather simplifies its representation.

4. How is a negative magnitude phasor presentation used in science?

Negative magnitude phasor presentations are commonly used in fields such as electrical engineering, physics, and signal processing. They are used to analyze and solve problems involving complex numbers and circuits.

5. Are there any exceptions to erasing the - sign in a negative magnitude phasor presentation?

No, there are no exceptions to erasing the - sign in a negative magnitude phasor presentation. The magnitude of a complex number is always positive, regardless of the sign of the real or imaginary component.

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