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Magnetic circuit, the Glossary

A magnetic circuit is made up of one or more closed loop paths containing a magnetic flux.^[1]

94 relations: Alexanderson alternator, Ampère's circuital law, Ampere, Ampere-turn, Area, Cathode-ray tube, Centimetre–gram–second system of units, Coulomb, Current density, Dot product, Electric current, Electric field, Electric generator, Electric motor, Electrical element, Electrical network, Electrical resistance and conductance, Electrical resistivity and conductivity, Electricity, Electromagnet, Electromotive force, Energy, Ferromagnetism, Flux, Flyback transformer, Galvanometer, Gauss's law for magnetism, Gyrator–capacitor model, Henry (unit), Henry Augustus Rowland, Horseshoe, Hysteresis, Inductance, Inductor, Integral, International Electrotechnical Commission, International System of Units, John Hopkinson, Kirchhoff's circuit laws, Leakage inductance, Line integral, Loudspeaker, Lumped-element model, Magnet, Magnet keeper, Magnetic cartridge, Magnetic circuit, Magnetic complex reluctance, Magnetic core, Magnetic current, ... Expand index (44 more) »
Electrical analogies
Magnetic circuits

Alexanderson alternator

An Alexanderson alternator is a rotating machine, developed by Ernst Alexanderson beginning in 1904, for the generation of high-frequency alternating current for use as a radio transmitter.

See Magnetic circuit and Alexanderson alternator

In classical electromagnetism, Ampère's circuital law (not to be confused with Ampère's force law) relates the circulation of a magnetic field around a closed loop to the electric current passing through the loop. Magnetic circuit and Ampère's circuital law are electromagnetism.

See Magnetic circuit and Ampère's circuital law

Ampere

The ampere (symbol: A), often shortened to amp,SI supports only the use of symbols and deprecates the use of abbreviations for units.

See Magnetic circuit and Ampere

Ampere-turn

The ampere-turn (symbol A⋅t) is the MKS (metre–kilogram–second) unit of magnetomotive force (MMF), represented by a direct current of one ampere flowing in a single-turn loop.

See Magnetic circuit and Ampere-turn

Area

Area is the measure of a region's size on a surface.

See Magnetic circuit and Area

Cathode-ray tube

A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen.

See Magnetic circuit and Cathode-ray tube

Centimetre–gram–second system of units

The centimetre–gram–second system of units (CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time.

See Magnetic circuit and Centimetre–gram–second system of units

Coulomb

The coulomb (symbol: C) is the unit of electric charge in the International System of Units (SI).

See Magnetic circuit and Coulomb

Current density

In electromagnetism, current density is the amount of charge per unit time that flows through a unit area of a chosen cross section.

See Magnetic circuit and Current density

Dot product

In mathematics, the dot product or scalar productThe term scalar product means literally "product with a scalar as a result".

See Magnetic circuit and Dot product

Electric current

An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space.

See Magnetic circuit and Electric current

Electric field

An electric field (sometimes called E-field) is the physical field that surrounds electrically charged particles. Magnetic circuit and electric field are electromagnetism.

See Magnetic circuit and Electric field

Electric generator

In electricity generation, a generator is a device that converts motion-based power (potential and kinetic energy) or fuel-based power (chemical energy) into electric power for use in an external circuit.

See Magnetic circuit and Electric generator

Electric motor

An electric motor is an electrical machine that converts electrical energy into mechanical energy.

See Magnetic circuit and Electric motor

Electrical element

In electrical engineering, electrical elements are conceptual abstractions representing idealized electrical components, such as resistors, capacitors, and inductors, used in the analysis of electrical networks.

See Magnetic circuit and Electrical element

Electrical network

An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances, capacitances).

See Magnetic circuit and Electrical network

Electrical resistance and conductance

The electrical resistance of an object is a measure of its opposition to the flow of electric current. Magnetic circuit and electrical resistance and conductance are electromagnetism.

See Magnetic circuit and Electrical resistance and conductance

Electrical resistivity and conductivity

Electrical resistivity (also called volume resistivity or specific electrical resistance) is a fundamental specific property of a material that measures its electrical resistance or how strongly it resists electric current.

See Magnetic circuit and Electrical resistivity and conductivity

Electricity

Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Magnetic circuit and Electricity are electric and magnetic fields in matter and electromagnetism.

See Magnetic circuit and Electricity

Electromagnet

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Magnetic circuit and electromagnet are electromagnetism.

See Magnetic circuit and Electromagnet

Electromotive force

In electromagnetism and electronics, electromotive force (also electromotance, abbreviated emf, denoted \mathcal) is an energy transfer to an electric circuit per unit of electric charge, measured in volts. Magnetic circuit and electromotive force are electromagnetism.

See Magnetic circuit and Electromotive force

Energy

Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.

See Magnetic circuit and Energy

Ferromagnetism

Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet.

See Magnetic circuit and Ferromagnetism

Flux

Flux describes any effect that appears to pass or travel (whether it actually moves or not) through a surface or substance.

See Magnetic circuit and Flux

Flyback transformer

A flyback transformer (FBT), also called a line output transformer (LOPT), is a special type of electrical transformer.

See Magnetic circuit and Flyback transformer

Galvanometer

A galvanometer is an electromechanical measuring instrument for electric current.

See Magnetic circuit and Galvanometer

Gauss's law for magnetism

In physics, Gauss's law for magnetism is one of the four Maxwell's equations that underlie classical electrodynamics.

See Magnetic circuit and Gauss's law for magnetism

Gyrator–capacitor model

The gyrator–capacitor model - sometimes also the capacitor-permeance model - is a lumped-element model for magnetic circuits, that can be used in place of the more common resistance–reluctance model. Magnetic circuit and gyrator–capacitor model are electrical analogies and magnetic circuits.

See Magnetic circuit and Gyrator–capacitor model

Henry (unit)

The henry (symbol: H) is the unit of electrical inductance in the International System of Units (SI).

See Magnetic circuit and Henry (unit)

Henry Augustus Rowland

Henry Augustus Rowland (November 27, 1848 – April 16, 1901) was an American physicist and Johns Hopkins educator.

See Magnetic circuit and Henry Augustus Rowland

Horseshoe

A horseshoe is a product designed to protect a horse hoof from wear.

See Magnetic circuit and Horseshoe

Hysteresis

Hysteresis is the dependence of the state of a system on its history.

See Magnetic circuit and Hysteresis

Inductance

Inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it.

See Magnetic circuit and Inductance

Inductor

An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it.

See Magnetic circuit and Inductor

Integral

In mathematics, an integral is the continuous analog of a sum, which is used to calculate areas, volumes, and their generalizations.

See Magnetic circuit and Integral

International Electrotechnical Commission

The International Electrotechnical Commission (IEC; Commission électrotechnique internationale) is an international standards organization that prepares and publishes international standards for all electrical, electronic and related technologies – collectively known as "electrotechnology".

See Magnetic circuit and International Electrotechnical Commission

International System of Units

The International System of Units, internationally known by the abbreviation SI (from French Système international d'unités), is the modern form of the metric system and the world's most widely used system of measurement.

See Magnetic circuit and International System of Units

John Hopkinson

John Hopkinson, FRS, (27 July 1849 – 27 August 1898) was a British physicist, electrical engineer, Fellow of the Royal Society and President of the IEE (now the IET) twice in 1890 and 1896.

See Magnetic circuit and John Hopkinson

Kirchhoff's circuit laws

Kirchhoff's circuit laws are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits.

See Magnetic circuit and Kirchhoff's circuit laws

Leakage inductance

Leakage inductance derives from the electrical property of an imperfectly coupled transformer whereby each winding behaves as a self-inductance in series with the winding's respective ohmic resistance constant.

See Magnetic circuit and Leakage inductance

Line integral

In mathematics, a line integral is an integral where the function to be integrated is evaluated along a curve.

See Magnetic circuit and Line integral

Loudspeaker

A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound.

See Magnetic circuit and Loudspeaker

Lumped-element model

The lumped-element model (also called lumped-parameter model, or lumped-component model) is a simplified representation of a physical system or circuit that assumes all components are concentrated at a single point and their behavior can be described by idealized mathematical models.

See Magnetic circuit and Lumped-element model

Magnet

A magnet is a material or object that produces a magnetic field.

See Magnetic circuit and Magnet

Magnet keeper

A magnet keeper, also known historically as an armature, is a bar made from magnetically soft iron or steel, which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is important for magnets that have low magnetic coercivity, such as alnico magnets (0.07T).

See Magnetic circuit and Magnet keeper

Magnetic cartridge

A magnetic cartridge, more commonly called a phonograph cartridge or phono cartridge or (colloquially) a pickup, is an electromechanical transducer that is used to play phonograph records on a turntable.

See Magnetic circuit and Magnetic cartridge

Magnetic circuit

A magnetic circuit is made up of one or more closed loop paths containing a magnetic flux. Magnetic circuit and magnetic circuit are electric and magnetic fields in matter, electrical analogies, electromagnetism and magnetic circuits.

See Magnetic circuit and Magnetic circuit

Magnetic complex reluctance

Magnetic complex reluctance (SI Unit: H−1) is a measurement of a passive magnetic circuit (or element within that circuit) dependent on sinusoidal magnetomotive force (SI Unit: At·Wb−1) and sinusoidal magnetic flux (SI Unit: T·m2), and this is determined by deriving the ratio of their complex effective amplitudes. Magnetic circuit and magnetic complex reluctance are electrical analogies and magnetic circuits.

See Magnetic circuit and Magnetic complex reluctance

Magnetic core

A magnetic core is a piece of magnetic material with a high magnetic permeability used to confine and guide magnetic fields in electrical, electromechanical and magnetic devices such as electromagnets, transformers, electric motors, generators, inductors, loudspeakers, magnetic recording heads, and magnetic assemblies.

See Magnetic circuit and Magnetic core

Magnetic current

Magnetic current is, nominally, a current composed of moving magnetic monopoles. Magnetic circuit and magnetic current are electromagnetism.

See Magnetic circuit and Magnetic current

Magnetic field

A magnetic field (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

See Magnetic circuit and Magnetic field

Magnetic flux

In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface.

See Magnetic circuit and Magnetic flux

Magnetic monopole

In particle physics, a magnetic monopole is a hypothetical elementary particle that is an isolated magnet with only one magnetic pole (a north pole without a south pole or vice versa).

See Magnetic circuit and Magnetic monopole

Magnetic reluctance

Magnetic reluctance, or magnetic resistance, is a concept used in the analysis of magnetic circuits. Magnetic circuit and magnetic reluctance are electric and magnetic fields in matter and magnetic circuits.

See Magnetic circuit and Magnetic reluctance

Magnetomotive force

In physics, the magnetomotive force (abbreviated mmf or MMF, symbol \mathcal F) is a quantity appearing in the equation for the magnetic flux in a magnetic circuit, Hopkinson's law.

See Magnetic circuit and Magnetomotive force

Maxwell's equations

Maxwell's equations, or Maxwell–Heaviside equations, are a set of coupled partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, electric and magnetic circuits. Magnetic circuit and Maxwell's equations are electromagnetism.

See Magnetic circuit and Maxwell's equations

Mesh analysis

Mesh analysis (or the mesh current method) is a circuit analysis method for planar circuits.

See Magnetic circuit and Mesh analysis

Metre

The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI).

See Magnetic circuit and Metre

Multimedia is a form of communication that uses a combination of different content forms, such as writing, audio, images, animations, or video, into a single interactive presentation, in contrast to traditional mass media, such as printed material or audio recordings, which feature little to no interaction between users.

See Magnetic circuit and Multimedia

Newton (unit)

The newton (symbol: N) is the unit of force in the International System of Units (SI).

See Magnetic circuit and Newton (unit)

Ohm

The ohm (symbol: Ω, the uppercase Greek letter omega) is the unit of electrical resistance in the International System of Units (SI).

See Magnetic circuit and Ohm

Ohm's law

Ohm's law states that the electric current through a conductor between two points is directly proportional to the voltage across the two points.

See Magnetic circuit and Ohm's law

Path of least resistance

The path of least resistance is the physical or metaphorical pathway that provides the least resistance to forward motion by a given object or entity, among a set of alternative paths.

See Magnetic circuit and Path of least resistance

Permeability (electromagnetism)

In electromagnetism, permeability is the measure of magnetization produced in a material in response to an applied magnetic field. Magnetic circuit and permeability (electromagnetism) are electric and magnetic fields in matter.

See Magnetic circuit and Permeability (electromagnetism)

Permeance

Permeance, in general, is the degree to which a material admits a flow of matter or energy. Magnetic circuit and Permeance are electric and magnetic fields in matter.

See Magnetic circuit and Permeance

Perpendicular

In geometry, two geometric objects are perpendicular if their intersection forms right angles (angles that are 90 degrees or π/2 radians wide) at the point of intersection called a foot.

See Magnetic circuit and Perpendicular

Phasor

In physics and engineering, a phasor (a portmanteau of phase vector) is a complex number representing a sinusoidal function whose amplitude, and initial phase are time-invariant and whose angular frequency is fixed.

See Magnetic circuit and Phasor

Pickup (music technology)

A pickup is a transducer that captures or senses mechanical vibrations produced by musical instruments, particularly stringed instruments such as the electric guitar, and converts these to an electrical signal that is amplified using an instrument amplifier to produce musical sounds through a loudspeaker in a speaker enclosure.

See Magnetic circuit and Pickup (music technology)

Power (physics)

Power is the amount of energy transferred or converted per unit time.

See Magnetic circuit and Power (physics)

Recording head

A recording head is the physical interface between a recording apparatus and a moving recording medium.

See Magnetic circuit and Recording head

Relay

A relay Electromechanical relay schematic showing a control coil, four pairs of normally open and one pair of normally closed contacts An automotive-style miniature relay with the dust cover taken off A relay is an electrically operated switch.

See Magnetic circuit and Relay

Reluctance motor

A reluctance motor is a type of electric motor that induces non-permanent magnetic poles on the ferromagnetic rotor.

See Magnetic circuit and Reluctance motor

Remanence

Remanence or remanent magnetization or residual magnetism is the magnetization left behind in a ferromagnetic material (such as iron) after an external magnetic field is removed.

See Magnetic circuit and Remanence

Resistor

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.

See Magnetic circuit and Resistor

Saturation (magnetic)

Seen in some magnetic materials, saturation is the state reached when an increase in applied external magnetic field H cannot increase the magnetization of the material further, so the total magnetic flux density B more or less levels off.

See Magnetic circuit and Saturation (magnetic)

Scalar (physics)

Scalars (or scalar quantities) are physical quantities that are unaffected by changes to a vector space basis (i.e., a coordinate system transformation).

See Magnetic circuit and Scalar (physics)

Siemens (unit)

The siemens (symbol: S) is the unit of electric conductance, electric susceptance, and electric admittance in the International System of Units (SI).

See Magnetic circuit and Siemens (unit)

Sine wave

A sine wave, sinusoidal wave, or sinusoid (symbol: ∿) is a periodic wave whose waveform (shape) is the trigonometric sine function.

See Magnetic circuit and Sine wave

Square metre

The square metre (international spelling as used by the International Bureau of Weights and Measures) or square meter (American spelling) is the unit of area in the International System of Units (SI) with symbol m2.

See Magnetic circuit and Square metre

SQUID

A SQUID (superconducting quantum interference device) is a very sensitive magnetometer used to measure extremely weak magnetic fields, based on superconducting loops containing Josephson junctions.

See Magnetic circuit and SQUID

Surface integral

In mathematics, particularly multivariable calculus, a surface integral is a generalization of multiple integrals to integration over surfaces.

See Magnetic circuit and Surface integral

Switched-mode power supply

A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.

See Magnetic circuit and Switched-mode power supply

References

[1] https://en.wikipedia.org/wiki/Magnetic_circuit

Also known as Hopkinson's Law, Magnetic circuits, Ohm's law for magnetic circuits, Resistance–reluctance model, Rowland's law.

, Magnetic field, Magnetic flux, Magnetic monopole, Magnetic reluctance, Magnetomotive force, Maxwell's equations, Mesh analysis, Metre, Multimedia, Newton (unit), Ohm, Ohm's law, Path of least resistance, Permeability (electromagnetism), Permeance, Perpendicular, Phasor, Pickup (music technology), Power (physics), Recording head, Relay, Reluctance motor, Remanence, Resistor, Saturation (magnetic), Scalar (physics), Siemens (unit), Sine wave, Square metre, SQUID, Surface integral, Switched-mode power supply, Television, Tesla (unit), Tokamak, Transformer, Turn (angle), Unit of measurement, Vacuum, Vacuum permeability, Volt, Weber (unit), William Gilbert (physicist), Winding number.

Magnetic circuit, the Glossary

Table of Contents

See also

Electrical analogies

Magnetic circuits

References