Electromagnetism – conceptually what is the relationship between electricity and magnetism (and by extension voltage etc)
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The relationships are [Maxwell’s Equations](https://www.fiberoptics4sale.com/blogs/electromagnetic-optics/a-plain-explanation-of-maxwells-equations) but they are quite complex mathematical, the line does include no mathematical explanation and examples.
A simple part is that a change in the magnetic field results in an electrical current in a wire. A changing electrical current causes a chain magnetic field
This is how electrical motors and generator works. Rotate magnets with an external force close to electrical coils and you have an electrical generator with an alternating current output.
Put the same alternating current into an identical device where the magnet does not rotate and the electricity will cause it to rotate. This is an electrical motor.
>A moving charge always has both a magnetic and an electric field, and that’s precisely the reason why they are associated with each other.
>They may also exist independently. Without the electric field, the magnetic field exists in permanent magnets and electric fields exist in the form of static electricity, in absence of the magnetic field.
https://www.diffen.com/difference/Electric_Field_vs_Magnetic_Field
Think of an electrical conductor (such as a wire) like the drain in your tub. Once one drop flows down the drain, the rest of the drops follow gravity and start to go down the drain.
Electricity and magnetism work in a similar way. Once electrons are moving through a conductor, they create a pulling force on other electrically conductive materials near it depending on how many elections are moving (aka current). This is how your ceiling fan works – current flows through a series of coils fixed to the housing, and that current pulls (via magnetism) a set of conducive plates affixed to the rotating blades.
The relationship between magnetism and electricity is basically the same thing but in reverse. This is how an electrical generator works – an engine causes the rotation of a set of conducive plates in very close proximity to a set of fixed coils. The rotation of the plates excite the elections in the coils to move them (aka generate current).
* Charges exert forces on other charges via electric fields.
* Moving charges exert forces on other moving charges via magnetic fields.
* Changing electric fields induce magnetic fields and vice versa.
* You can create self-propagating electric and magnetic fields which move outwards at the speed of light (in a vacuum). This is fundamentally what light is.
As simple to understand : movie electric charge produce magnetic field around it, likewise movie magnet produce electric field around it,and both are perpendicular to one another field of direction
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