Electric currents and conductors

[vipulan12]

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?)

 

[Crazymechanic]

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.

 

[vipulan12]

okay but are those electric fields used to create radio waves

 

[nsaspook]

okay but are those electric fields used to create radio waves

Yes they can if the changes happen at radio frequency speeds, here are some visual demonstrations of the process.
http://www.tapir.caltech.edu/~teviet/Waves/empulse.html
http://phet.colorado.edu/sims/radiating-charge/radiating-charge_en.html

 

[sardar]

I can provide a response to your questions about electric currents and conductors. When an electric current passes through a conductor, it does indeed generate both an electric field and a magnetic field. These fields are closely related and interact with each other, which is why they are often referred to as the electromagnetic field.

The main difference between the two fields is their direction of influence. The electric field is a force that acts in the direction of the electric charge, while the magnetic field is a force that acts perpendicular to the direction of the electric charge. In other words, the electric field is responsible for the attraction or repulsion of charges, while the magnetic field is responsible for the movement of charges.

Electric fields are not necessarily harmful to humans, as they are present in our everyday lives and are essential for many technological advancements. However, high levels of exposure to electric fields, such as those from power lines or electrical appliances, can potentially have negative effects on human health. It is important to follow safety guidelines and minimize exposure to high levels of electric fields.

Electric fields are not the same as radio waves. While both are forms of electromagnetic radiation, they have different frequencies and wavelengths. Radio waves are a type of electromagnetic radiation that have a lower frequency and longer wavelength compared to electric fields. They are commonly used for communication and are generally considered safe for human exposure.