Electromagnetic fields+voltage=hard homework

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Homework Help Overview

The discussion revolves around a project involving the creation of an electromagnet and the investigation of how voltage influences the magnitude and power of the electromagnetic field. Participants are exploring the relationships between voltage, current, and magnetic field strength within the context of electromagnetism.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the relationship between voltage and current, with some referencing equations related to magnetic field strength and power dissipation. Questions arise regarding the definition of "power" in the context of a magnetic field and whether the inquiry focuses solely on magnetic field strength.

Discussion Status

The discussion is active, with various interpretations being explored regarding the effects of voltage on the electromagnetic field. Some participants have offered equations and insights into the relationships between voltage, current, and magnetic field strength, while others are questioning the clarity of the terms used in the original inquiry.

Contextual Notes

There appears to be some ambiguity regarding the term "power" as it relates to the magnetic field, with participants discussing different aspects of power in the context of electrical circuits and magnetic fields. The original poster seeks guidance on equations but does not provide specific constraints or requirements for the project.

Emmsey Square
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Alright, I'm doing a project where I'm supposed to make an electromagnet, and then figure out how the voltage affects both the magnitude and the power of the electromagnetic field. Can anyone give me some good equations to use, or something?
 
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how the voltage affects both the magnitude and the power of the electromagnetic field

Magnetic field strength is given by

[tex]F = ILB[/tex]

The obvious answer is that the more voltage you have, the higher the current in the line will be.
 
Last edited:
Originally posted by Emmsey Square
Alright, I'm doing a project where I'm supposed to make an electromagnet, and then figure out how the voltage affects both the magnitude and the power of the electromagnetic field. Can anyone give me some good equations to use, or something?

Is the question just about the strength of the magnetic field (magnitude), or is there a second thing? The "power" of a magnetic field doesn't make any sense.

THere would be the power dissipated in the coil of wire while it created the magnetic field: P=IV and V = IR put together give you P = (V^2)/R where R is the resistance in the wire.
 
Last edited:
Well, Voltage=CurrentxResistance. So, the more voltage you have, the more current there is. And the more current you have, the more "power" your magnetic field has.
 

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