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
V =IR
thus the curent varies inversely proportional to R
Answered by
| 21st Sep, 2012,
10:42: PM
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