Question

what is a electro magnetic field​

Answer 1

An electromagnetic field (also EMF or EM field) is a physical field produced by electrically charged objects.[1] It affects the behavior of charged objects in the vicinity of the field. The electromagnetic field extends indefinitely throughout space and describes the electromagnetic interaction. It is one of the four fundamental forces of nature (the others are gravitation, weak interaction and strong interaction

Answer 2

Explanation:

$\implies{\mathsf{\bold{Electromagnetic \: field}}}$ is also known as EMF or EM field.

$\implies$ Electromagnetic fields are a combination of electric and magnetic fields of force, as thier wavelengths are not in region of visible range so they are invisible.

$\implies$It is an physical field which is produced by electrically charged objects.

$\implies$Electromagnetic field is an electricity derivative which is produced by the electrical conductors and alternating currents(A.C, non direct form)

$\implies$It is generated when the charged small particles such as electrons that is (photons) are accelerated or in motion.

As we know that,

$\bigstar$ Charged particles in motion produce magnetic fields

$\bigstar$ Every electrically charged particles produce electric fields.