What is a Phasor? Explanation & Definition

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Homework Help Overview

The discussion revolves around the concept of phasors, particularly in the context of electrical engineering and alternating current analysis. Participants seek clarification on the definition and application of phasors following a class session where the topic was introduced.

Discussion Character

  • Conceptual clarification, Exploratory

Approaches and Questions Raised

  • Participants express confusion regarding the definition of phasors and their relevance in calculations. Some attempt to describe phasors as rotating vectors and their relationship to sine waves, while others question whether the term is being used in a specific context, such as electrical engineering or popular culture.

Discussion Status

The discussion is ongoing, with some participants providing insights into the nature of phasors as vectors and their use in representing phase differences. However, there is still a need for further clarification and exploration of the concept.

Contextual Notes

Participants mention that the topic was introduced in class, but the professor did not provide a clear definition, leading to confusion. There is an indication that the understanding of phasors may vary based on the context in which they are discussed.

azolotor
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Could someone please give me an explanation of what we mean we say phasor please. We went over phasors in class today and I understood all the manipulations we were doing for superposition but my professor mentioned phasors and never said what they were. I have looked up several definitions but it isn't gelling for me. Thanks in advance!
 
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azolotor said:
Could someone please give me an explanation of what we mean we say phasor please. We went over phasors in class today and I understood all the manipulations we were doing for superposition but my professor mentioned phasors and never said what they were. I have looked up several definitions but it isn't gelling for me. Thanks in advance!
Was he talking about Star Trek or electricity?

Phasors are vectors drawn in a circle to represent the phase differences of alternating current or voltages so that values can be calculated.

AM
 
azolotor said:
Could someone please give me an explanation of what we mean we say phasor please.
A phasor is a rotating vector. In 99.9% of your course of study you can neglect the fact that they rotate; just manipulate them like ordinary vectors. They rotate because a sinewave can be represented by the projection of a rotating vector onto a chosen axis.
 
Thanks so much! Much clearer now.
 

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