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A transformer couples two or more AC signals through a magnetic field. Often used as galvanic isolation and to transform one AC voltage to another.

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Why in a inverter DC to AC 12V et 220V when I increase the voltage, the current decrease to ... [closed]

For example this product So it would be logical that more voltage pass on the out side of the socket of the transformer, the more current will be transmitted in the out side socket of the transformer.. … What's the relationship with my sentence: "the more voltage, and thus the more current it draws, the faster it goes.", in this case of a transformer? …
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