The length of a potentiometer wire is 200 cm and the e.m.f. of the battery connected to it is E. It is used to measure the e.m.f. of a cell whose internal resistance is `0.5 Omega` . If the balance point is obtained at l=40 cm from the positive end, then the e.m.f. of the cell is

The length of a wire of a potentiometer is 100 cm, and the e.m.f. of its standard cell is E volt. It is employed to measure the e.m.f. of a battery whose internal resistance is 0.5 Omega . If the balance point is obtained at I = 30 cm from the positive end, the e.m.f. of the battery is . where i is the current in the potentiometer wire.

The length of a wire of a potentiometer is 100 cm, and the e.m.f. of its standard cell is E volt. It is employed to measure the e.m.f. of a battery whose internal resistance is 0.5 Omega . If the balance point is obtained at I = 30 cm from the positive end, the e.m.f. of the battery is . where i is the current in the potentiometer wire.

The length of a wire of a potentiometer is 100 cm, and the e.m.f. of its standard cell is E volt. It is employed to measure the e.m.f. of a battery whose internal resistance is 0.5 Omega. If the balance point is obtained at I = 30 cm from the positive end, the e.m.f. of the battery is . Where I is the current in the in the potentiometer wire.

The length of a wire of a potentiometer is 100 cm, and the e.m.f. of its standard cell is E volt. It is employed to measure the e.m.f. of a battery whose internal resistance is 0.5 Omega . If the balance point is obtained at I = 30 cm from the positive end, the e.m.f. of the battery is . where i is the current in the potentiometer wire.

The length of a wire of a potentiometer is 100 cm, and the emf of its stand and cell is E volt. It is employed to measure the emf of a battery whose internal resistance is 0.5Omega. If the balance point is obtained at l= 30 cm from the positive end, the emf of the battery is

The length of potentiometer wire is 200 cm and the emf of standard cell is primary circuit is E volts. It is employed to a battery of emf 0.4 v the balance point is obtained at l = 40 cm from positive end, the E of the battery is (cell in primary is ideal and series resistance is zone

The length of potentiometer wire is 200 cm and the emf of standard cell is primary circuit is E volts. It is employed to a battery of emf 0.4 v the balance point is obtained at l = 40 cm from positive end, the E of the battery is (cell in primary is ideal and series resistance is zone