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The inductor is a conductor, usually a coil of wire, that stores energy in a magnetic field in response to the current through it.
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inductor and is
While the voltage level is above the DC rail current is supplied by the inductor.
An electromagnetic coil ( or simply a " coil ") is formed when a conductor ( usually an insulated solid copper wire ) is wound around a core or form to create an inductor or electromagnet.
* In an LC oscillator circuit, the filter is a tuned circuit ( often called a tank circuit ) consisting of an inductor ( L ) and capacitor ( C ) connected together.
In one common arrangement the resistor shown in the circuit above is replaced with a parallel-tuned circuit consisting of an inductor and capacitor in parallel, whose components are chosen to resonate the frequency of the input signal.
An inductor ( also choke, coil or reactor ) is a passive two-terminal electrical component that stores energy in its magnetic field.
An inductor is typically made of a wire or other conductor wound into a coil, to increase the magnetic field.
When the current flowing through an inductor changes, creating a time-varying magnetic field inside the coil, a voltage is induced, according to Faraday's law of electromagnetic induction, which by Lenz's law opposes the change in current that created it.
The principle of coupled magnetic fluxes between a stationary and a rotating inductor coil is also used to produce mechanical torque in induction motors, which are widely used in appliances and industry.
An inductor is used as the energy storage device in some switched-mode power supplies.
The inductor is energized for a specific fraction of the regulator's switching frequency, and de-energized for the remainder of the cycle.
An inductor is usually constructed as a coil of conducting material, typically copper wire, wrapped around a core either of air or of ferromagnetic or ferrimagnetic material.
However, the small dimensions limit the inductance, and it is far more common to use a circuit called a " gyrator " that uses a capacitor and active components to behave similarly to an inductor.
The effect of an inductor in a circuit is to oppose changes in current through it by developing a voltage across it proportional to the rate of change of the current.
The relationship between the time-varying voltage v ( t ) across an inductor with inductance L and the time-varying current i ( t ) passing through it is described by the differential equation:
When there is a sinusoidal alternating current ( AC ) through an inductor, a sinusoidal voltage is induced.
If an inductor is connected to a direct current source with value I via a resistance R, and then the current source is short-circuited, the differential relationship above shows that the current through the inductor will discharge with an exponential decay:
When using the Laplace transform in circuit analysis, the impedance of an ideal inductor with no initial current is represented in the s domain by:
:::: is the initial current in the inductor.
inductor and conductor
" Turns " refers to the winding number of an electrical conductor comprising an inductor.
Two small metal brushes rub against the buttons ; the brushes are fixed to a curved conductor ( covered with ebonite ) that is clamped to the disks at opposite points and is in contact with the inductor ’ s tinfoil strips.
" Turns " refers to the winding number of an electrical conductor comprising an inductor.
inductor and usually
The complex generalization of resistance is impedance, usually denoted Z ; it can be shown that for an inductor,
Although the inductor gives the best performance, usually the resistor is chosen for cost reasons.
The passive component whose value is adjustable is usually a capacitor, but could be a variable inductor.
* Magnetic Path Length – the length of the closed magnetic path loop usually inside some inductor or transformer core made of ferromagnetic material.
Placing the snubber diode in inverse parallel with the inductive load allows the current from the inductor to flow through the diode rather than through the switching element, dissipating the energy stored in the inductive load over the series resistance of the inductor and the ( usually much smaller ) resistance of the diode ( over-voltage protection ).
Newer, external inductor type lamps, use low frequency ballasts that usually have FCC ( or other certification ) thus they comply with RFI regulations.
( Because of the use of the inductor, such ballasts are usually called magnetic ballasts.
inductor and coil
Power can be coupled to a load by transformer action with a secondary coil wound on the inductor.
The term air core coil describes an inductor that does not use a magnetic core made of a ferromagnetic material.
A variable inductor can be constructed by making one of the terminals of the device a sliding spring contact that can move along the surface of the coil, increasing or decreasing the number of turns of the coil included in the circuit.
An almost ideal inductor ( Q approaching infinity ) can be created by immersing a coil made from a superconducting alloy in liquid helium or liquid nitrogen.
In the inductor magneto, the magnet is rotated and the coil remains stationary.
In electronics, a loading coil or load coil is a coil ( inductor ) that does not provide coupling to any other circuit, but is inserted in a circuit to increase its inductance.
One coil, A, will be connected through a resistor and the second coil, B, through an inductor, so that the current in coil B is delayed with respect to current in A.
In the case of an electrical transformer, inductor or relay, the bobbin is a permanent container for the wire, acting to form the shape of the coil ( and ease assembly of the windings into or onto the magnetic core ).
This consists of a coil of wire called an inductor or tuning coil and a capacitor connected together, one or both of which is adjustable and can be used to tune in different stations.
In inexpensive sets the inductor had a sliding spring contact that pressed against the windings and could be slid up and down the coil, to allow a larger or smaller number of turns of the coil into the circuit, varying the inductance, to tune in different stations.
inductor and wire
* Center tap, a wire that is connected halfway along one of the windings of a transformer, inductor or a resistor
The battery fed power to the telephone via an inductor and the telephone line was connected ( via a capacitor on one wire ) to the terminals of the inductor.
The magnetomotive force in an inductor or electromagnet consisting of a coil of wire is given by:
The name inductrack comes from the word inductance or inductor ; an electrical device made from loops of wire.
The ring and wire units play the role of atomic dipoles: the wire acts as a ferroelectric atom, while the ring acts as an inductor L and the open section as a capacitor C. The ring as a whole therefore acts as an LC circuit.
Litz wire is used in an impressive variometer ( i. e., variable inductor, not the aircraft vertical-velocity indicator also called a variometer ).
0.120 seconds.