Some times balance point may not be obtained on the potentiometer wire. Why?

Sometmes balance point may not be obtained on the potentiometer wire. Why?

Why jockey should not be slided along the potentiometer wire?

Sometimes the balance point in the potentiometer may not be obtained on the wire of the potentiometer . Under what condition does it happen ?

When the balance point is obtained in the potentiometer, a current is drawn from?

In an experiment to find the internal resistance of a cell by a potentiometer, a balance was obtained for 50 cm length of the potentiometer wire, with a cell of e.m.f. 2V. When the cell was shunted by a resistance of 2 Omega , the balancing length of the potentiometer wire was 40 cm. What was the internal resistance of the cell ?

In a potentiometer, balance point is obtained, when

Why should the balance point be obtained in the middle of the wire of a metre bridge?

A potentiometer is connected between A and B and the balance point is obtained at 203.6cm. When the end of the potentiometer connected to B is shifted to C, then the balance point is obtained at 24.6cm. If now the potentiometer be connected between B and C, the balance point will

A balance point is obtained in the potentiometer wire .If the fall of potential along the potentiometer wire Due to……is greater than the …..in the balanced