The wire of potentiometer has resistance `4Omega` and length `1m`. It is connected to a cell of emf 2 volt and internal resistance `1Omega`. If a cell of emf 1.2 volt is balanced by it, the balancing length will be

The wire of potentiometer has resistance 4Omega and length Im. It is connected to a cell of EMF 2V and internal resistance 1Omega . Ifa cell ofEMF 1.2V is balanced byit, the balancing length will be:

The wire of potentiometer has resistance 4 Omega and length 1m. It is connected to a cell of e.m.f. 2V and internal resistance 1 Omega . The current flowing through the potentiometer wire is

The wire of potentiometer has resistance 4 Omega and length 1m. It is connected to a cell of e.m.f. 2V and internal resistance 1 Omega . The current flowing through the potentiometer wire is

A potentiometer wire has length 10m and resistance 10Omega . It is connected to battery of EMF 11 volt and internal resistance 1Omega , then the potential gradient in the wire is

A potentiometer wire of length 10 m and resistance 9 ohm is connected to a battery of e.m.f. 2.1 volt having internal resistance 1.5 Omega . Find the potential gradient along the wire and the balancing length for a cell of e.m.f. 1.08 volt .

A resistance of 4 Omega and a wire of length 5 meters and resistance 5 Omega are joined in series and connected to a cell of e.m.f. 10 V and internal resistance 1 Omega . A parallel combination of two identical cells is balanced across 300 cm of wire. The e.m.f. E of each cell is

A resistance of 4 Omega and a wire of length 5 meters and resistance 5 Omega are joined in series and connected to a cell of e.m.f. 10 V and internal resistance 1 Omega . A parallel combination of two identical cells is balanced across 300 cm of wire. The e.m.f. E of each cell is

A potentiometer wire of length 100 cm has a resistance of 10Omega . It is connected in series with a resistance and a cell of emf 2V and of negligible internal resistance. A source of emf 10 mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of external resistance ?

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