A transformer has 100 turns in the primary and 500 turns in the secondary coil. If the input is 20 V, what is the output voltage?
Answer and explanation
Correct answer: B. 100 V
- Step 1: The voltage ratio equals the turns ratio, so V. Answer: 100 V. Why not the others: 4 V, 20 V and 2500 V don't fit.
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