Use of Transformers (AQA GCSE Physics Combined Science): Flashcards
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Purpose of transformers in National Grid
Purpose 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
Material at core of transformer
Material at core of transformer
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 transformers
Use of step-up transformers
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 transformers
Use of step-down transformers
Reduce p.d. before electricity reaches homes
Efficiency of transformers
Efficiency of transformers
Nearly 100% efficient
Transformer efficiency equation
Transformer efficiency equation
in transformer equation
in transformer equation
P.d. in primary coil (V)