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How does a transformation feel?

Updated: 9/17/2019
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13y ago

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A transformer works on the principle of electromagnetic induction. Let's do a bit of review and then pull some things together. Any conductor through which current is flowing will have a magnetic field around it. When the current begins to flow, the field will build. Conductors with a changing current in them, with an alternating current (AC) flowing through them, will have a changing magnetic field around them. The field will arise and take form, then collapse. It will then arise again with the opposite polarity, and then collapse. This alternating field, which is a direct result of the alternating current, can be set up near another conductor to induce a voltage in that other conductor. The magnetic field around the first conductor is said to "sweep" the second conductor and induce that voltage in it. This is electromagnetic induction, and is the principle on which transformer action occurs. If we wind a coil of wire around a ferromagnetic core, the core will facilitate the "flow" of the magnetic field that arises as AC is applied to the winding. The addition of a second (secondary) winding around the core in the vicinity of the first (primary) winding will allow an optimum amount of "sweeping action" (magnetic coupling) to occur between the two windings. And if we tinker a bit with the number of turns in the windings, we can get stepped up or stepped down voltages as a result of the transformer action in the device.
Transformer is a type of machine which is used to step up or step down the voltage.and works on the principle of mutual induction.according to which voltage can be induced in a winding that is electrically isolated from the winding connected with source...

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Ashton Stoltenberg

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2y ago
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12y ago

A transformer works on the principle of electromagnetic induction. Let's do a bit of review and then pull some things together. Any conductor through which current is flowing will have a magnetic field around it. When the current begins to flow, the field will build. Conductors with a changing current in them, with an alternating current (AC) flowing through them, will have a changing magnetic field around them. The field will arise and take form, then collapse. It will then arise again with the opposite polarity, and then collapse. This alternating field, which is a direct result of the alternating current, can be set up near another conductor to induce a voltage in that other conductor. The magnetic field around the first conductor is said to "sweep" the second conductor and induce that voltage in it. This is electromagnetic induction, and is the principle on which transformer action occurs. If we wind a coil of wire around a ferromagnetic core, the core will facilitate the "flow" of the magnetic field that arises as AC is applied to the winding. The addition of a second (secondary) winding around the core in the vicinity of the first (primary) winding will allow an optimum amount of "sweeping action" (magnetic coupling) to occur between the two windings. And if we tinker a bit with the number of turns in the windings, we can get stepped up or stepped down voltages as a result of the transformer action in the device.
Transformer is a type of machine which is used to step up or step down the voltage.and works on the principle of mutual induction.according to which voltage can be induced in a winding that is electrically isolated from the winding connected with source...

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13y ago

A transformer works by the application of the phenomenon of induction. Induction is the process whereby a magnetic field that is moving relative to a conductor (and, therefore, "sweeps" the conductor) will induce a voltage in that conductor. In a transformer, the magnetic field created around the primary winding is said to be coupled to the secondary winding where it will induce a voltage. It is important to remember that any current flow will create a magnetic field around its path of travel. Let's construct a simple transformer to see how it works.

If we have a piece of ferromagnetic core material and wind two coils of wire about it, we have a basic transformer. One coil will be the primary winding, and the other will be the secondary winding. The primary winding will have a voltage applied to it, and that voltage will drive current through the winding. As the current flows through the primary, a magnetic field will be built up around that winding. The key is that the expanding magnetic field around the primary will "sweep" the secondary winding, and induce a voltage in that winding. The voltage induced in the secondary will drive current in the secondary winding, and the transformer will have transformed. We must note that an AC (alternating current) is in use here. The changing voltage is what causes the expanding and contracting magnetic fields that cause the induction. It is possible to "pulse" a DC voltage to effect transformer action in the device, but we'll stick to basics for now.

In use, a transformer will generally be used to step up or step down voltage. A low voltage in the primary can, with the proper turns ratio, be stepped up in the secondary. The reverse is also true, and the ideas of step up and step down Transformers are what drive the power grid. Lower voltages are generated at a source of power, and stepped up to make the transit through the big transmission lines. At the other end, the voltage is stepped back down for local distrubution and use. In this process, power into the primary winding equals power out of the secondary winding (less some loss), so there is no "creation" of energy or of power in a transformer.

There are a number of transformer types and applications, and they can be explored more as the investigator continues. Use the link below to begin learning more about transformers.

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13y ago

when an AC voltage is applied to the primary winding, it drives a current in it. This current sets up a flux which links with the secondary through the core. Due to the alternating nature of the flux, by Faraday's laws of Electromagnetic Induction, an emf is induced in the secondary winding. When the secondary is connected to a load, a current flows. Thus energy is transferred from one circuit to another without any change of frequency. This is the working of a transformer.

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13y ago

They let these bars out of their hands and legs that transform and make them big robots.

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