The following diagram shows the circuit for the comparision of e.m.f. of the cells. The circuit can be corrected by:-

Draw the circuit diagram for the comparison of e.m.f's of two cells by a potentiometer.

Comparision Of Emf Of Two Cells

Draw a circuit diagram for the comparison of e.m.f. of two primary cells using a potentiometer.

Draw circuit diagram for the comparison of e.m.fs of two cells with the help of a potentiometer.

In an open circuit the emf of the cell is

Study the following circuit diagram and mark the correct options.

The following diagram (Fig) shows four circuits A, B, C and D. Each circuit has a cell and a torch bulb. Name the circuits in which the bulb will glow? Give reason to your answer.

Choose the correct statements from the following a) in potentiometer experiment balancing length represent the potential difference across the secondary cell b) the shunt resistance between the terminals of cell in the secondary circuit of potentiometer is increased, the balancing length increases c) in potentiometer experiment the e.m.f of the cell in the secondary circuit may be greater than the e.m.f of cell in the primary circuit d) potentiometer is used to measure thermo e.m.f. also