3.4 Transformers Flashcards
1
Q
What is a transformer?
A
An electrical device used to change a voltage
2
Q
What are transformers used in?
A
National grid
3
Q
What is a step up transformer?
A
Makes the pd across the secondary coil greater than the pd across the primary coil
4
Q
What is a step down transformer?
A
Makes the pd across the secondary coil less than the pd across the primary coil
5
Q
What is a switch mode transformer?
A
A transformer that works at a much higher frequencey than a traditional tranformer
