Understanding Transformers: How they Change Voltage and Current

The video tutorial explains how transformers work, focusing on their ability to change the size of an alternating potential difference. It covers the structure of transformers, consisting of primary and secondary coils wound on a common iron core, and how they induce a potential difference. The tutorial also discusses the relationship between the potential differences and currents in the coils, using equations to demonstrate these concepts. An example calculation is provided to illustrate how to determine the potential difference and current in a transformer, assuming 100% efficiency.

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