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Question 241

What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?

  1. 360 voltsCorrect answer
  2. 120 volts
  3. 40 volts
  4. 25.5 volts

Explanation

The voltage ratio follows the turns ratio: 120 × (1500 / 500) = 120 × 3 = 360 volts. Dividing instead of multiplying gives the 40-volt distractor, which would be the step-down case.

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Question 241: What is the voltage output of a transformer with a 500-turn… · FCC General Class (Element 3) · Questena