How is the direction of a magnetic field determined? How does Earth's magnetic field flip? What is a magnet? "It turns out that electric fields are what is produced when charges are locked in place, as in not moving. And magnetic fields are what we get when charges begin to move."...
So this negatively charged particle produces an electric field around it, everywhere in space. The Electric Field is a vector quantity - it has a magnitude (how strong the field strength is) and a direction (which direction does the field point). The field strength dies off (becomes smaller ...
(They're also the particles that carry electricity around circuits.) In an electron microscope, a stream of electrons takes the place of a beam of light. An electron has an equivalent wavelength of just over 1 nanometer, which allows us to see things smaller even than light itself (smaller...
How does a change in flux cause electrons to move, thereby making a current? How does moving a magnetic field create an electric field? How do coils impact the strength of a magnetic field? How are magnetic fields and electric fields related?
In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma. ElectricCurrentDensity In electromagnetism, current density is the electric current per unit area of cross ...
Receiving electricity from the inverter, the electric traction motor provides the power that makes an electric vehicle move. Electric traction motors are commonly powered by an alternating current, as this type of motor is more efficient and reliable than a DC motor. When AC electrons reach the ...
The electrons do not Lorentz contract, rather they dilate a la Bell's Space Ship Paradox (BSSP). The wire remains neutral when current starts not just because of (1), but because it is stipulated in the problem, and the electrons must move on separate trajectories...
Can a nucleus emit a photon? Fig. 1: A nucleus emitting agamma ray. ( Analogous to how electrons have energy levels and release a photon when they drop in energy, nuclei also have energy levels and emit photons when they move from an excited state to a less energetic state. ...
Alternators work by moving a coil of copper wire backwards and forwards though a magnetic field. Electrons in the wire are move under the force of the magnet, generating a small electric current. Controlling The Electrical Output Because the coil is rotating through the magnetic field, the flow...
In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma. ElectricCurrentDensity In electromagnetism, current density is the electric current per unit area of cross ...