Electric/Magnetic field Inverse square

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    Field Inverse Square
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Discussion Overview

The discussion revolves around the application of the inverse square law in the context of magnetic and electric fields, particularly in a homework experiment involving measurements of magnetic fields. Participants explore the differences between using magnetic fields versus electric fields in such experiments.

Discussion Character

  • Homework-related
  • Debate/contested
  • Exploratory

Main Points Raised

  • One participant questions whether there is a difference between using magnetic fields and electric fields in the context of the inverse square law.
  • Another participant states that the inverse square law applies depending on the configuration of the source, noting that it holds for a single magnet or concentrated charge.
  • A different participant mentions that their experiment involved two magnets and questions why electric fields were not considered as an alternative.
  • One participant argues that electric charges are difficult to control due to potential leakage and environmental factors, suggesting that magnets are more stable and easier to work with.
  • Another participant claims that only monopole fields follow the inverse square law and points out that there are no magnetic monopoles, implying that magnetic fields do not adhere to this law.
  • A participant requests to see results or a graph from the experiment, indicating interest in the data collected.

Areas of Agreement / Disagreement

Participants express differing views on the applicability of the inverse square law to magnetic fields versus electric fields, with no consensus reached on the best approach for the experiment or the nature of the fields involved.

Contextual Notes

Participants highlight limitations in controlling electric charges and the environmental factors that may affect their behavior, which could influence the outcomes of experiments involving electric fields.

superslow991
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Homework Statement


Using magnetic field over electric field

Homework Equations


no equation needed

The Attempt at a Solution


THis may not make sense but did an experiment dealing with the inverse square law and we measured the magnetic field in this case. Want to know is there some type of difference between magnetic field and electric field where we would choose to use the magnetic field over the electric field? for the inverse square law?

[Note: Thread moved to general physics by a mentor]
 
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the inverse square law depends on the configuration of the source(s) of the field, only if there is one magnet or a concentrated charge will it hold up
 
andrevdh said:
the inverse square law depends on the configuration of the source(s) of the field, only if there is one magnet or a concentrated charge will it hold up
Well we used 2 magnets but my teacher said we could perform the same experiment with just 2 charges and why were we not offered to use an electric fied than magnetic field in this case
 
electric charges are difficult to keep control over. they can easily leak away for instance if you come too close to the source spark over can occur. also if the humidity is high (as low as 60% relative humidity) even an insulator can conduct the charge away thereby weakening the source. magnets are quite stable and do not change that readily, so it is much easier to work with them rather than an electrically charged body.
 
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Only the monopole field follows the inverse square law. There are no magnetic monopoles so the magnetic field does not follow the inverse square law.
 
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could you maybe show us your results or a picture of your graph?
 

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