GCSE Physics - How Transformers Work

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*** WHAT'S COVERED ***
1. The role of transformers in the National Grid.
* Using step-up transformers.
* Using step-down transformers.
2. The basic structure of a transformer.
* Primary coil, secondary coil and iron core.
3. The process of electromagnetic induction in a transformer.
4. How transformers change voltage.
* The relationship between the number of turns on the primary and secondary coils.
* How step-up transformers increase voltage.
* How step-down transformers decrease voltage.

*** EXAM BOARD INFO ***
AQA - Separate/triple science and higher tier only
IGCSE Edexcel - Separate/triple science and higher tier only
Edexcel - Higher tier only
OCR 21st Century - Separate/triple science and higher tier only
OCR Gateway - Separate/triple science and higher tier only

*** CHAPTERS ***
0:00 Intro & Role in National Grid
1:07 Transformer Structure
1:24 How Transformers Work (Step-by-Step)
3:21 Changing the Voltage (Step-up vs Step-down)

*** PLAYLISTS ***










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