Transformers (AQA GCSE Physics): Flashcards
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12 cards from this deck
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Practise the cards
12 cards from this deck
Device that changes AC voltage
Device that changes AC voltage
Transformer
Transformer that increases voltage
Transformer that increases voltage
Step-up transformer
Transformer that decreases voltage
Transformer that decreases voltage
Step-down transformer
Main components of a transformer
Main components of a transformer
Two coils of wire and iron core
Current type needed for transformers
Current type needed for transformers
Alternating current (AC)
Why transformers don't work with DC
Why transformers don't work with DC
DC produces constant magnetic field, no induction
What AC in primary coil produces
What AC in primary coil produces
Changing magnetic field
What's induced in secondary coil
What's induced in secondary coil
Alternating potential difference
Transformer use in National Grid
Transformer use in National Grid
Increase voltage before transmission
Transformer use for homes
Transformer use for homes
Lower high voltage to safe levels
More coils on secondary than primary
More coils on secondary than primary
Step-up (increases voltage)