Lesson: Chapter 13 — Electromagnetism and electromagnetic induction

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Question 2

A transformer has 100 turns on the primary and 1000 on the secondary. The primary is given 12 V AC. What is the secondary voltage?

A 1.2 V B 12 V C 1200 V D 120 V

The right answer is the one marked above.

120 V. Ten times the turns gives ten times the voltage.

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