1. 1. State the principle on which a potentiometer works. How can… - Vidyadip

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State the principle on which a potentiometer works. How can a given potentiometer be made more sensitive?
In the graph shown below for two potentiometers, state with reason which of the two potentiometers, A or B, is more sensitive.

Two metallic wires, P₁ and P₂ of the same material and same length but different cross-sectional areas, A₁ and A₂ are joined together and connected to a source of emf. Find the ratio of the drift velocities of free electrons in the two wires when they are connected (i) in series, and (ii) in parallel.

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