Question

In potentiometer a balance point is obtained, when ______.

Options

• the e.m.f. of the battery becomes equal to the e.m.f of the experimental cell.
• 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.
• the p.d. of the wire between +ve point of cell and jockey becomes equal to the e.m.f. of the battery.
• the p.d. across the potentiometer wire becomes equal to the e.m.f. of the battery.

Answer 1

In potentiometer a balance point is obtained, when 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.