MCQ
In potentiometer a balance point is obtained, when:
  • A
    The e.m.f. of the battery becomes equal to the e.m.f of the experimental cell.
  • B
    The p.d. of the wire between the +ve end of battery to jockey becomes equal to the e.m.f. of the experimental cell.
  • C
    The p.d. of the wire between +ve point of cell and jockey becomes equal to the e.m.f. of the battery.
  • D
    The p.d. across the potentiometer wire becomes equal to the e.m.f. of the battery.

Answer

  1. The p.d. of the wire between the +ve end of battery to jockey becomes equal to the e.m.f. of the experimental cell.

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