Use of Transformers (AQA GCSE Physics): Flashcards
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Role of transformers in National Grid
Role of transformers in National Grid
Increase and decrease potential difference
Two coils in a transformer
Two coils in a transformer
Primary coil and secondary coil
What transformer coils are wrapped around
What transformer coils are wrapped around
Iron core
Type of transformer that increases p.d.
Type of transformer that increases p.d.
Step-up transformer
Coil turns in step-up transformer
Coil turns in step-up transformer
Secondary has more turns than primary
Use of step-up transformer
Use of step-up transformer
Increase p.d. for electricity transportation via cables
Type of transformer that decreases p.d.
Type of transformer that decreases p.d.
Step-down transformer
Coil turns in step-down transformer
Coil turns in step-down transformer
Secondary has fewer turns than primary
Use of step-down transformer
Use of step-down transformer
Reduce p.d. before electricity reaches homes
Efficiency of transformers
Efficiency of transformers
Nearly 100% efficient