Physics for IGCSE & O level - The Earth In Space (Section 7 - No. 25) | ExamPlay

Physics for IGCSE & O level - The Earth In Space (Section 7 - No. 25)

What is the current in the secondary coil? Assume that the transformer is 100% efficient.

0.5 A

1.0 A

2.0 A

4.0 A

Explanation

Calculate using the transformer equation, assuming ideal efficiency.

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