A cell gives a balance with 85 cm of a potentiometer wire. When the terminals of the cell are shorted through a resistance of `7.5Omega`, the balance is obtained at 75 cm. Find the internal resistance of the cell.

In an experiment to determine the internal resistance of a cell, the null point is obtained at 2 cm, when the cell is shnted by a resistance of 5Omega . When the cell is shunted by a resistance of 20Omega , the null point is obtained at 3 cm. Find the internal resistance of the cell.

A cell can be balanced against 110 cm and 100 cm of potentiometer wire respectively, when open icrcuited and when short circuited through a resistance of 10 ohm. Find the internal resistance of the cell.

In a potentiometer experiment , the balancing with a cell is at length 240 cm. On shunting the cell with a resistance of 2Omega , the balancing length becomes 120 cm. Find the internal resistasnce of the cell.

It is found that 125 cm length of a potentiometer wire is required to balance the e.m.f. of a Daniel cell but that only 100 cm of the wire is required for the balance, if the poles of the ell are joined to a resistance of 2 ohm. Calculate the internal resistance of the cell.

How will you use potentiometer to determine internal resistances of a cell?

With a certain cell, the balance point is obtained at 65 cm from the zero end of a potentiometer wire. With another cell, whose e.m.f. is less than that of the first by 0.1 V, the balance point is obtained at 60 cm. What is the e.m.f. of the first cell ?

A cell supplies a current of 0.3 A through a resistance of 7 ohm and a current of 0.9 A through a resistance of 2 ohm. The internal resistance of the cell is

When a balance point is obtained in a potentiometer for finding the internal resistance of a cell, the current through the potentiometer wire is due to

In a potentiometer arrangement for determining the emf of a cell, the balance point of the cell in open circuit is 350 cm. When resistance of 9 Omega is used in the external circuit of the cell, the balance point shifts to 300 cm. Determine the internal resistance of the cell.