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A transformer is an electrical device designed to transfer electrical energy between two or more circuits through electromagnetic induction. Its fundamental working principle is based on Faraday's law of electromagnetic induction, which states that a varying magnetic flux in a coil induces an electromotive force (EMF) in a nearby coil. When an alternating current flows through the primary winding of a transformer, it generates a time-varying magnetic flux in the core, which then induces a voltage across the secondary winding. This allows the transformer to step up or step down voltage levels while ideally maintaining the same frequency, making it crucial for power ____ ________ ___ ________ ____ __________ ____ ________ _______ _____.
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