Which of the following statements is false?

  • A
    Wheatstone bridge is the most sensitive when all the four resistances are of the same order of magnitude.
  • B
    In a balanced Wheatstone bridge,if the cell and the galvanometer are exchanged,the null point is disturbed.
  • C
    $A$ rheostat can be used as a potential divider.
  • D
    Kirchhoff's second law represents energy conservation.

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