Transformers _ GCSE Physics

The video tutorial explains the function and types of transformers, focusing on step-up and step-down transformers used in the national grid. It describes their structure, working principle through electromagnetic induction, and the importance of AC current. The tutorial provides formulas for calculating potential differences and highlights the efficiency of transformers. It also introduces switch mode transformers used in electronic chargers, noting their high-frequency operation and low power consumption when idle.

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