How EM wave propagated?
According to Maxwell's Equations electromagnetic waves are able to propagate without the need for any medium: moving electric charges induce a moving magnetic field, a moving magnetic field induces moving electric charges, ad infinitum... ...
Asked in Electricity and Magnetism
How does an electric field exert force on anything that has an electric charge?
An electric field has what are called lines of force that radiate outward from the electric charge that creates them. It is the "touch" or the interaction with these lines of force that allow an electric field to exert a force (an electrostatic force) on anything with an electric charge. A fundamental law of electrostatics is that like charges repel and opposite charges attract. A charge will have an electric field around it, and if another charge is nearby, the fields of...
What is the meaning of magnetism and electricity?
Magnetism is the phenomenon associated with magnetic fields, the effects of such fields, and the motion of electric charges. And, electricity is the phenomenon associated with stationary or moving electric charges. ...
Asked in Science
How does the movement of electrons between two objects cause buildup of electric charges?
Every electron has a charge of minus one. When you move electrons, you necessarily are also moving electric charges. ...
Asked in Physics
Is an electric charge a current?
It might be possible to characterize an electric charge as a current -- if that charge is moving. Any moving charge is electricity under the fundamental definition of that term. Electricity is generally thought of as moving electrons, but a more fundamental definition of electricity is any moving charge or group of charges. If your electric charge is moving, it is electric current. ...