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Network TheoryCoupled Circuits

An ideal transformer has N1/N2=5 and primary voltage 250 V RMS. The secondary voltage magnitude is?

  • A10 V
  • B50 V
  • C250 V
  • D1250 V
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Correct Answer: B. 50 V
Explanation: For an ideal transformer, V1/V2=N1/N2=5, so V2=250/5=50 V.
Reference: Standard network theory: ideal transformer voltage ratio
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