On what factors, does the potential gradient of the potentimeter wire depend?

The potential gradient of the potentiometer wire depends on

On what factors does a potential gradient of a wire depend.

The potential gradient for a potentiometer depends on

The potential gradient for a potentiometer depends on

What is the unit of potential-gradient ? If the potential gradient along the potentiometer wire be decreased, will the zero-deflection position be obtained at longer length or shorter length ?

On what factors does the pole strength of a magnet depend?

On what factors does the buoyant force depend?

On what factors, does the value of electrode potential depend?