Potentiometer (To Find Internal Resistance )||Color Coding OF Resistance

Internal Resistance Of A Cell

The internal resistance of a cell is the resistance of

Determination Of Internal Resistance Of A Cell

Resistivity & Temperature || Colour Code OF Resistances

Internal resistance of a cell depends on

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

The internal resistance of a cell is determined by using a potentiometer. In an experimetn, an external resistance of 60 Omega is used across the given cell. When the key is closed, the balance length on the potentiometer decreases form 72 cm to 60 cm. calculate the internal resistance of the cell.

The emf of the driver cell of a potentiometer is 2 V , and its internal resistance is negligible. The length of the potentiometer wire is 100 cm , and resistance is 5 omega . How much resistance is to be connected in series with the potentiometer wire to have a potential gradient of 0.05 m V cm^(-1) ?

In fig. battery E is balanced on 55cm length of potentiometer wire but when a resistance of 10Omega is connected in parallel with the battery then it balances on 50cm length of the potentiometer wire then internal resistance r of the battery is:-