Question

Potential difference across terminals of a cell were measured against different currents

Answer 1

Answer:

Potential difference across terminals of a cell were measured against different currents

Explanation:

For a cell, a graph is plotted between the potential difference V across the terminals of the cell and the current I drawn the cell. The emf and the internal resistance of the cell are E and r, respectively. ... The bridge is balanced and the current is ADC is larger then in ABC, Also I3=0.

Answer 2

Explanation:

☑️The electromotive force (e) or e.m.f. is the energy provided by a cell or battery per coulomb of charge passing through it, it is measured in volts (V). It is equal to the potential difference across the terminals of the cell when no current is flowing.