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1.In the potentiometer the resistive material used is may be resistance wire and carbon material.

2.This material is placed in the circular form both ends are open of the resistive wire,these ends are connected to external leads.

3. Then this resistive material encapsulated into the metal or plastic coatings.

4.The movable arm makes firm contact on the resistive material and its resistance is varry acordingly to theire contact positions.

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12y ago

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