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Hay's bridge is preferred to the Maxwell-Wien bridge for coils of

  • A.low Q
  • B.large physical size
  • C.iron core construction
  • D.high Q

Answer: D

In Hay's bridge the capacitor has a resistance in series rather than in parallel with it, and the resistance needed comes out inversely proportional to Q. For a high-Q coil the Maxwell-Wien bridge would call for an impracticably large parallel resistance, whereas Hay's needs only a small one.

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