Question

On what factors does resistance depends ? explain.


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Answer 1

Answer:

1) Resistivity :- Resistance depends upon resistivity which is a proportionality constant and depends on nature of substance and temperature.

2) Temperature :- As the temperature increases, the value of resistivity increases so resistance increases . (In the case of conductors or simply metals).

3) Length :- Resistance is directly proportional to the length . So as the length increases the value of resistance increases.

4) Cross Section Area :- Resistance is inversely proportional to the cross section area . So as cross section area increases the value of resistance decreases.

Answer 2

Answer:

resistance depends on

1) length of conductor(directly proprtional)

2) area of conductor(inversely proprtional)

3)temperature.....for conductors resistance increase with temprature