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Questions and Answers
What does a varying current in any coil of a transformer produce?
What does a varying current in any coil of a transformer produce?
- A varying magnetic flux in the transformer's core (correct)
- A constant voltage across any other coils wound around the same core
- A varying voltage across any other coils wound around the same core
- A constant magnetic flux in the transformer's core
What is the primary function of a transformer in providing galvanic isolation between circuits?
What is the primary function of a transformer in providing galvanic isolation between circuits?
- To increase the voltage between the circuits
- To decrease the voltage between the circuits
- To regulate the current between the circuits
- To prevent current flow between the circuits (correct)
What does Faraday's law of induction describe?
What does Faraday's law of induction describe?
- The resistance of the transformer's core to magnetic flux
- The relationship between voltage and current in a transformer
- The induced voltage effect in any coil due to a changing magnetic flux (correct)
- The efficiency of energy transfer in a transformer
What is the purpose of a step-up transformer?
What is the purpose of a step-up transformer?
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