Exam-style question
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What is the relationship between the primary and secondary currents in an ideal transformer?.
- A.Primary current is greater than secondary current
- B.Secondary current is greater than primary current
- C.Primary current equals secondary current
- D.Primary current is independent of secondary current
Model answer
What a good answer should say
- Secondary current is greater than primary current
Explanation
Why this works
In an ideal transformer, when the voltage is stepped up, the secondary current decreases, and vice versa, maintaining the power balance (P = V x I) across the transformer.
Common mistake
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