3.4 Transformers Flashcards

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1
Q

What is a transformer?

A

An electrical device used to change a voltage

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2
Q

What are transformers used in?

A

National grid

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3
Q

What is a step up transformer?

A

Makes the pd across the secondary coil greater than the pd across the primary coil

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4
Q

What is a step down transformer?

A

Makes the pd across the secondary coil less than the pd across the primary coil

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5
Q

What is a switch mode transformer?

A

A transformer that works at a much higher frequencey than a traditional tranformer

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