Understanding Electric Power and Transformer Input: A Detailed Explanation

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Homework Help Overview

The discussion revolves around the concept of electric power, specifically in the context of a transformer and its input power. Participants are exploring the meaning of power in electrical terms and its implications in transmission and transformer operation.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the definition of electric power and its measurement in the context of transmission. There are discussions about the relationship between input and output power in transformers, with some participants suggesting that there may be complexities involved in understanding these values.

Discussion Status

The discussion is ongoing, with participants providing insights into the meaning of power and raising questions about the differences between input and output power. There is no explicit consensus, but various interpretations and clarifications are being explored.

Contextual Notes

Some participants express uncertainty about the relationship between input and output power, indicating potential complications in the problem setup. The original poster's inquiry suggests a need for deeper understanding of the concepts involved.

phyphysics
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What really does the word 'power" mean in the following context?

An electric power of 110kW is transmitted through the cables.

Input power of the transformer
 
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P = UI, this is the power the current heats the cable + the power the device in the other end is using.
 
That means that 110,000 joules of electrical energy is being transmitted every second.
 
how about input power and output power?
 
... sounds like there's an extra complication about this problem or else itd obviously be the same #'s
 

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