Electric currents and conductors

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Discussion Overview

The discussion revolves around the relationship between electric currents and the fields they generate, specifically focusing on electric and magnetic fields. Participants explore the nature of these fields, their differences, and their implications, including potential effects on humans and their role in generating radio waves.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions whether current passing through a conductor generates both an electric field and a magnetic field, and seeks clarification on the differences between the two.
  • Another participant asserts that wherever there is current, both electric and magnetic fields are present, explaining that an electric field exists due to charge at a potential, while a magnetic field arises only when there is current flow.
  • A participant inquires if electric fields can be used to create radio waves.
  • A later reply confirms that electric fields can contribute to the creation of radio waves if changes occur at radio frequency speeds, providing links to visual demonstrations.

Areas of Agreement / Disagreement

Participants express differing levels of understanding regarding the relationship between electric and magnetic fields, with some agreeing on the basic principles while others seek further clarification. The discussion remains unresolved on the implications of electric fields for human health and their connection to radio waves.

Contextual Notes

Some assumptions about the nature of electric and magnetic fields, as well as the conditions under which they interact, are not fully explored. The discussion does not resolve the potential health effects of electric fields or the specifics of their role in radio wave generation.

vipulan12
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when current passes a conductor?
does it also generate an electric field with a magnetic field?
also what is the difference between the two fields?(i searched it up but i still don't get it)
also are electric fields harmful to humans?(are they the same as radio waves?)
 
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wherever there is current there is an electric and magnetic field also , because the flow of current creates the EM field.
Now if you have a wire that is charged at any given potential but isn't connected in a circuit or there is no path for the current to flow then there is only an electric field which is created by the charge in the conductor.
An electric field turn to EM field only when there is current flow.
No current flow no magnetic field.

In easy terms the difference between them would be that an electric field arises wherever there is charge with a different potential than ground ( the reference point) but a magnetic field arises only when the charge is moving either back and forth like in AC or in one way Like DC.
For the charge to move you need to give a path for it to flow and then current arises.
 
okay but are those electric fields used to create radio waves
 

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