Potentiometer|Principle|Potential Gradient|Application|To Compare EMF Of Two Cell

In potentiometer the potential gradient is –

Potentiometer|Applications Of Potentiometer

Potential gradient of a potentiometer is equal to

A potentiometer has uniform potential gradient across it. Two cells connected in series (i) to support each other and (ii) to oppose each other are balanced over 6 m and 2 m respectively on the potentiometer wire. The e.m.f.’s of the cells are in the ratio of

A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10^(-7) ohm-metre and the current passing through it is 0.1 ampere, cross-section of the wire is 10^(-6)" m"^(2) . The potential gradient along the potentiometer wire is

A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10^(-7) ohm-meter and the current passing through it is 0.1 ampere, cross-section of the wire is 10^(-6)m^(2) . The potential gradient along the potentiometer wire is

As is the cross sectional area and rho is the specific resistance of a potentiometer wire. If I is the current passing through the potentiometer wire, then the potential gradient along the length of the wire is given by

Explain the principle fo Potentiometer. Draw the labelled circuit diagram for comparing of emf of two cells ?

State the principle of potentiometer. Draw a circuit diagram used to compare the emfs of two primary cells. Write the formula used. How can the sensitivity of a potentiometer be increased.

A cell of negligible internal resistance is connected to a potentiometer wire and potential gradient is found. Keeping the length as constant, if the radius of potentiometer wire is increased four times, the potential gradient will become (no series resistance in primary)