In the circuit shown in the figure, AB is a resistance wire of uniform cross-section in which a potential gradient of `0.01Vcm^-1` exists.
If the internal resistance of the deriver cell increases on some account, how will it change the balance point in the experiment?

In the circuit shown in the figure, AB is a resistance wire of uniform cross-section in which a potential gradient of 0.01V^-1 exists. If the galvanometer G shows zero deflection what is the e.m.f. E_1 of the cell used?

The following circuit shows the use of potentionmeter to measure the internal resistance of a cell. When the key K is open, how does the balance point change if the current from the driver cell decreases?

In the circuit show in the figure E,F,G and H are cells of e.m.f. 2,1,3 and 1 V and their internal resistances are 2,1,3 and 1Omega respectively. Calculate the potential difference across the terminals of each of the cells G and H.

The following circuit shows the use of potentionmeter to measure the internal resistance of a cell.When the key K is closed, how does the balance point change if R is increased keeping current from the driver cell constant?

Figure shows potentionmeter circuit for comparison of two resistances. The balance point with a standard resistor R=10.0Ω is found to be 58.3 cm, while that with the unknown resistance X is 68.5 cm. Determine the value of X. What would you do if you failed to find a balance point with the given cell of emf E?

A 10 meter long wire of uniform cross section of 20 Omega resistance is used as a potentiometer wire. This wire is connected in series with a battery of 5V along with an external resistance of 480 Omega if an unknown emf epsilon is balanced at 600 cm of this wire , calculate the potential gradient of the potentiometer wire.

Calculate the conductance and conductivity of a wire of resistance 0.01Omega area of cross-section 10^-4m^2 and length 0.1 m.

A negligibly small current is passed through a wire of length 15 m and uniform cross-section 6.0 xx 10^-7 m^2 , and its resistance is measured to be 5.0 Omega . What is the resistivity of the material at the temperature of the experiment?