An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into...

physics, electromagnetism is an interaction that occurs between particles with electric charge via electromagnetic fields. The electromagnetic force is...

Electromagnetic therapy or electromagnetic field therapy refers to therapy involving the use of magnets or electromagnets.[citation needed] Types include[citation...

Bitter electromagnets have been used to achieve the strongest continuous manmade magnetic fields on earth―up to 45 teslas, as of 2011[update]. The design...

In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic...

altering the strength of a magnetic field produced by electromagnets using a feedback loop. In most cases the levitation effect is mostly due to permanent magnets...

An electromagnetic pulse (EMP), also referred to as a transient electromagnetic disturbance (TED), is a brief burst of electromagnetic energy. The origin...

Electromagnetic weapon may refer to: Electromagnetic pulse (EMP), a natural or man-made transient electromagnetic disturbance Directed-energy weapon (DEW)...

inductors, electromagnets, transformers, sensor coils such as in medical MRI imaging machines. Either an electric current is passed through the wire of the coil...

In electromagnetism, the electromagnetic tensor or electromagnetic field tensor (sometimes called the field strength tensor, Faraday tensor or Maxwell...

The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate...

proposed the differential equation model of the electromagnetic field in 1873, the mechanism of action of fields came into question, for instance in the Kelvin's...

understanding of electromagnets, he expected that, when current started to flow in one wire, a sort of wave would travel through the ring and cause some...

In electromagnetism, permeability is the measure of magnetization produced in a material in response to an applied magnetic field. Permeability is typically...

An electromagnetic lock, magnetic lock, or maglock is a locking device that consists of an electromagnet and an armature plate. The principle behind an...

An electromagnetic field (also EM field) is a physical field, mathematical functions of position and time, representing the influences on and due to electric...

Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by...

Computational electromagnetics (CEM), computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields...

Electromagnetic forming (EM forming or magneforming) is a type of high-velocity, cold forming process for electrically conductive metals, most commonly...

An Electromagnetic Log, sometimes called an "EM log", is an electronic sensor which measures the speed of a vessel through sea water. Like many other...

Classical electromagnetism or classical electrodynamics is a branch of theoretical physics that studies the interactions between electric charges and...

power supplied to the motor by using internal commutation, stationary magnets (permanent or electromagnets), and rotating electromagnets. Advantages of a...

low-frequency fields is active shielding, in which a field created by electromagnets cancels the ambient field within a volume. Solenoids and Helmholtz coils are...

right angles to the direction the liquid moves in, and a current is passed through it. This causes an electromagnetic force that moves the liquid. Applications...

Consequently, the maximum operating temperature of the clutch is limited by the temperature rating of the insulation of the electromagnet. This is a major...

Electromagnetic hypersensitivity (EHS) is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed. EHS has no scientific...

Electromagnetic compatibility (EMC) is the ability of electrical equipment and systems to function acceptably in their electromagnetic environment, by...

originally called electro-mechanical brakes but over the years the name changed to "electromagnetic brakes", referring to their actuation method which is...

angle. The circular arrangement of electromagnets is divided into groups, each group called a phase, and there is an equal number of electromagnets per group...

coil. Variations in current induce momentum in the coil, which can be directly measured. The electromagnetic oscillograph was invented by William Duddell...