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a. What does a transformer do? b. Interpreting Diagrams . What is the difference between a step-up transformer and a step-down transformer? c. Why do some appliances have step-down transformers built into them?


Answered 2 years ago
Answered 2 years ago
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(a) A transformer is a device that consists of two coils that are wrapped around an iron core. This device increases or decreases voltage when it is connected to an AC source.

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