In the given potentiometer arrangemeter the null point

At the null point____

In the potentiometer arrangement shown in figure null point is obtained l. match the following

In the potentiometer arrangement shown in figure null point is obtained l. match the following

In every experiment with potentiometer in the null point state, the potential difference between the ends of the galvanometer is

In every experiment with potentiometer in the null point state, the potential difference between the ends of the galvanometer is

In a potentiometer experiment the null point is obtained at 5.20 m for a cell. A Shunt resistance of 5 Omega is added. The new null point is at 4:00 m. What is the internal resistance of the cell ?

What are null points ?

In a potentiometer experiment, the null point is obtained at 140 cm for a cell of e.m.f. 1.2 V. With another cell of unknown e.m.f., the null point is obtained at 210 cm. The unknown e.m.f. is

In an experiment with a potentiometer, the null point is obtained at a distance of 60 cm along the wire from the common terminal with a leclanche cell. When a shunt resistance of 1 Omega is connected across the cell, the null point shifts to a distance of 30 cm from the common terminal. what is the internal resistance of the cell?