Question

Why 10 wire potentiometer is more sensitive than 4 wire potentiometer? Also give another way to increase the sensitivity of potentiometer .

Answer 1

Simply because voltage per unit length would decrease, meaning that we can get voltage value to more accurately than the 4 wire potentiometer would provide.

another way to increase the sensitivity of potentiometer :by reducing the current in the circuit by using a rheostat, help in decreasing the potential gradient, and thereby increasing the resistivity.