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Physics

A thin uniform wire AB  of length 1 m, an unknown resistance  X and a resistance of 12 straight capital omega  are connected, by thick conducting strips as shown in figure. A battery and a galvanometer (with a sliding jockey connected to it) are also available. Connections are to be measure the unknown resistance  using the principle of Wheatstone bridge. The appropriate connections are.

(E is the balance point for whetstone bridge)

PhysicsGeneral

  1. battery across  and galvanometer across
  2. battery across EC and galvanometer across BD
  3. battery across  and galvanometer across
  4. battery across  and galvanometer across

    Answer:The correct answer is: battery across  and galvanometer across

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