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In Hay's bridge the resistance is connected

  • A.in series with the standard capacitor
  • B.in parallel with the standard capacitor
  • C.in series with the unknown coil
  • D.across the detector

Answer: A

That series connection is the single structural difference from the Maxwell-Wien bridge, and it reverses which coils the bridge suits. The balance equations of Hay's bridge contain a Q-dependent term, so the inductance found is exact only if Q is large.

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