Question 1061 of 731 · Texas Journeyman Electrician Exam
A transformer that uses a single winding for both primary and secondary, with no electrical isolation between them, is:
Exactly one answer is correct.
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Correct answer to question 1061
- A: An autotransformer
Explanation
An autotransformer uses one tapped winding, so the primary and secondary are directly connected. It is smaller and cheaper but provides no isolation.
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