what is transformer? and only work AC Supply . Why?

principle of transformer

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  • 09 Mar
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transformer is a device that in used for increase and decrease the value of voltage without change in frequency.
transformer work only on ac supply because A transformer needs an alternating current that will create a changing magnetic field. A changing magnetic field also induces a changing voltage in a coil. This is the basis of how a transformer works: The primary coil is connected to an AC supply.

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