QUESTION:State in brief the meaning of variable resistor.Draw a circuit Diagram to illustrate its function specially in the study of variation in current with potential difference across the resistor?;

Asked by Sahil | 20th Sep, 2012, 04:01: PM

Expert Answer:

Its just a rheostat
It basicaly varies the resistance in the circuit and due to ohms law
thus the curent varies inversely proportional to R

Answered by  | 21st Sep, 2012, 10:42: PM

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