Typically, humbuckers, which are two magnet – coil assemblies attached to each other are traditionally associated with a heavier sound.

Gasoline engine ignition systems generally rely on a combination of a lead – acid battery and an induction coil to provide a high-voltage electric spark to ignite the air-fuel mix in the engine's cylinders.

* BL – Blazer series 1980 – 82 – fixed bridge strat-like with maple necks and mahogany or ash bodies sporting 3 single coil pickups ( Super 6 or BL ) or 2 Super 70 humbuckers.

They ordered the biggest magnet available – a 1. 5T system – and built the first high-field whole-body MRI / MRS scanner, overcoming problems of coil design, RF penetration and signal-to-noise.

* Coil protection – suppress the surge voltage produced when switching the coil current

The heat loads that must be removed by the cooling system include conduction through the support system, radiation from warmer to colder surfaces, AC losses in the conductor ( during charge and discharge ), and losses from the cold – to-warm power leads that connect the cold coil to the power conditioning system.

* September 21 – William Stanley, Jr. patents the first practical alternating current transformer device, the induction coil.

The vining cultivars grow thin tendrils from leaves that coil around any available support and can climb to be 1 – 2 m high.

The earliest bugles were shaped in a coil – typically a double coil, but also a single or triple coil – similar to the modern French horn, and were used to communicate during hunts and as announcing instruments for coaches ( somewhat akin to today's automobile horn ).

** Microphone – converts sound into an electrical signal ( air pressure → motion of conductor / coil → magnetic field → electrical signal )

** Geophone – converts a ground movement ( displacement ) into voltage ( vibrations → motion of conductor / coil → magnetic field → signal )

The device was a staple in schools and science fairs of the 1950s and 1960s, typically constructed out of a Model T spark coil, or any other source of high voltage in the 10, 000 – 30, 000 volt range, like a neon sign transformer ( 5 – 15 kV ) or a television picture tube circuit ( flyback transformer ) ( 10 – 28 kV ), and two coat hangers or rods built into a " V " shape.

Helmholtz coil –

Hybrid coil –

Loading coil –

Some combinations of amino acids will tend to curl up in a coil called an α-helix or into a sheet called a β-sheet ; some α-helixes can be seen in the hemoglobin schematic above.

Due to their lack of speed and their inability to bite or sting, millipedes ' primary defense mechanism is to curl into a tight coil — protecting their delicate legs inside an armored body exterior.

The stems of Cyclamen hederifolium and Cyclamen coum coil starting at the end, Cyclamen persicum arches downwards but does not curl, Cyclamen rohlfsianum coils starting near the tuber, and Cyclamen graecum coils both directions, starting at the middle.

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.

If the coil is designed to be energized with alternating current ( AC ), a small copper " shading ring " can be crimped to the end of the solenoid, creating a small out-of-phase current which increases the minimum pull on the armature during the AC cycle.

Any conductor, be it a loop, a coil or simply a piece of plate metal, that is placed in this field will have eddy currents induced in it thus creating an opposing magnetic field, in accordance with Lenz's law.

The magnetic field of all the turns of wire passes through the center of the coil, creating a strong magnetic field there.

Since the coil is attached to a diaphragm, the vibratory motion of the voice coil transmits to the diaphragm ; the diaphragm in turn vibrates the air — thus creating air motions or audio waves, which we hear as high sounds.

* Under the effect of the pressure of the detonation wave, the tube deforms and becomes a cone which contacts the helically wrapped coil, diminishing the number of turns not short-circuited, compressing the magnetic field and creating an inductive current ;

Underground archaeolocical features are detected by creating a magnetic field underground by applying an electric current that has a known frequency and magnitude through a sending coil.

As well as suppressing arcing, it helps boost the coil output by creating a resonant LC circuit with the coil windings.

Any conductor, be it a loop, a coil or simply a piece of plate metal, that is placed in this field will have eddy currents induced in it thus creating an opposing magnetic field, in accordance with Lenz's law.

When a high voltage from an induction coil was applied to one tuned circuit, creating sparks and thus oscillating currents, sparks were excited in the other tuned circuit only when the circuits were adjusted to resonance.

* Soap bar casing has true rectangular shape and the mounting screws are contained within the coil perimeter, positioned between the pole pieces, between strings 2-3 and 4-5, thus creating irregular and somewhat unusual pattern.

Faraday's experiment showing induction between coils of wire: The liquid battery ( right ) provides a current which flows through the small coil ( A ), creating a magnetic field.

Tesla used an incandescent-type lamp globe with a single internal conductive element and excited the element with high voltage currents from a Tesla coil, thus creating the brush discharge emanation.

In 1840 though, he did enclose a platinum coil in a vacuum tube and passed an electric current through it, thus creating one of the world's first electric light bulbs.

In the external inductor lamps, high frequency energy, from the electronic ballast, is sent through wires, which are wrapped in a coil around a ferrite inductor on the outside of the glass tube, creating a powerful electromagnet called an inductor.

Traditional flywheel magnetos ( using contact-breaker points, but no external coil ) worked equally well in reverse because the cam controlling the points is symmetrical, breaking contact before TDC equally well whether running forwards or backwards.

MEG signals were first measured by University of Illinois physicist David Cohen in 1968, before the availability of the SQUID, using a copper induction coil as the detector.

This is from a special connection called an " AC tap " which is a connection to one of the stator's coil output, before the rectifier.

This winding can take one of two forms: either the two windings must be wound such that the two form a single layer where each turn is touching each of the adjacent turns of the other winding ; or the two wires are twisted together before being wound into the coil.

Older vehicles, especially ones made before 1986, which have a carbureted engine and a single ignition coil and distributor, can be hot-wired from the engine bay.

Note that many AC demagnetizing coils have power cycles of several seconds so the part must be passed through the coil and be several feet ( meters ) away before the demagnetizing cycle finishes or the part will have residual magnetization.

A heat exchanger coil is placed before the air inlet of the HRV.

Wheel made pottery dates back to roughly 2500 BC where before the coil method of building the walls of the pot was employed.

The theme of the film is absorption in the obsessions, joys, and addictions of life, and there are many common threads between vignettes, such as the Tesla coil, medical knowledge, the suggestion that coffee and cigarettes don't make for a healthy meal ( generally lunch ), cousins, The Lees ( Cinqué, Joie, and a mention of Spike ), delirium, miscommunication, musicians, the similarities between musicianship and medical skill, industrial music, acknowledged fame, and the idea of drinking coffee before sleeping in order to have fast dreams.

" Frost-Free " refrigerator / freezer units usually use a heating element to defrost their evaporators, a pan to collect and evaporate water from the ice that melts from the cold plate and / or evaporator coil, a timer which turns off the refrigeration and turns on the defrost element usually twice to 4 times a day for periods usually ranging from 15 to 40 minutes, a defrost limiter switch that turns off the heating element before the temperature rises too much while the timer is still in its defrost cycle.

Kaylee mentioned that this part needed fixing twice before: in " Serenity ", when she asked Mal to buy a new compression coil for the engine, and in " The Train Job ", when she complained that " somebody won't replace that crappy compression coil ".