A series of free GCSE/IGCSE Physics Notes and Lessons.
Electricity - Transformers
How transformers change potential difference?
Step-up and step-down transformers.
How to use the transformer equation?
Benefits of switch-mode transformers.
The National Grid
How electricity is distributed from power stations to homes via the National Grid?
Explore the problem of energy loss and how this is overcome using step-up and step-down transformers.
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