Length of a potentiometer wire is kept long and uniform to ahcieve:-

The balancing length for a cell in a potentiometer experiment is 45 cm. In the balanced condition, the current through the potentiometer wire is 2 A. If the total length of the potentiometer wire is 1 m and its total resistance is 60Omega , the emf of the cell is (in Volts) _________.

The balancing length for a cell in a potentiometer experiment is 45 cm. In the balanced condition, the current through the potentiometer wire is 2 A. If the total length of the potentiometer wire is 1 m and its total resistance is 60Omega , the emf of the cell is (in Volts) _________.

If the length of a potentiometer wire is increased by keeping constant potential difference across the wire, then

The length of the potentiometer wire is 600 cm and a current of 40 mA is flowing in it. When a cell of emf 2 V and internal resistance 10Omega is balanced on this potentiometer the balance length is found to be 500 cm. The resistance of potentiometer wire will be

The length of the potentiometer wire is 600 cm and a current of 40 mA is flowing in it. When a cell of emf 2 V and internal resistance 10Omega is balanced on this potentiometer the balance length is found to be 500 cm. The resistance of potentiometer wire will be

The potentiometer wire of length 200 cm has a resistance of 20 Omega . It is connected in series with a resistance 10 Omega and an accumulator of emf 6 V having negligible internal resistance. A source of 2.4 V is balanced against length 1 of the potentiometer wire. Find the length l of the potentiometer wire. Find the length l

The potentiometer wire of length 200 cm has a resistance of 20 Omega . It is connected in series with a resistance 10 Omega and an accumulator of emf 6 V having negligible internal resistance. A source of 2.4 V is balanced against length 1 of the potentiometer wire. Find the length l of the potentiometer wire. Find the length l

Resistivity of the mateial of potentiometer wire is (rho) and area of its uniform cross section is A, Hence potential gradient on the wire is = ..... .

Why a potentiometer wire of longe length is preferred?