Flashcards
Physics: Transformers Robots In Disguise
Cards in this deck (10)
- 1What Voltage can Transformers Change?Only AC Voltages.
- 2What does a transformer have?Iron core, Primary and Secondary Coil.
- 3What is different in a Step-up Transformer?There are more turns on the Secondary Coil than the first.
- 4What is different in a Step-down Transformer?There are more turns on the Primary coil than the Secondary
- 5Why do Transformers Only work With DC? (1/5)Primary Coil produces a Magnetic Field which stays within the Iron Core
- 6Why do Transformers Only work With DC? (2/5)The Primary coil has a changing magnetic field because of the AC
- 7Why do Transformers Only work With DC? (3/5)The changing magnetic field also induces an AC in the Primary Coil - Which is Electromagnetic Induction.
- 8Why do Transformers Only work With DC? (4/5)The relative number of turns on the two coils determines wether the voltage induced in the secondary Coil is greater or less than the voltage in the Primary Coil.
- 9Why do Transformers Only work With DC? (5/5)If the Primary coil was supplied with DC, You'd get nuffin out of the Secondary Coil, nothing would be induced - because to need a changing field to induce voltage.
- 10Transformer Equation?Voltage across Primary Coil / Voltage across Secondary coil = Number of turns in primary coil / Number of turns in secondary coil.
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- GCSE Physics (Additional Physics) Flashcards on Physics: Transformers Robots In Disguise, created by Blgr64 on 11/03/2015.
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- Blgr64 · Mar 2015
- Updated
- Feb 19, 2016
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