Question

Derive an expression of the resistance based on there factors

Answer 1

Answer:

factors on which the resistance depends are as follows:

1:Length

2:Area of cross section

3: Nature of the material

4: Temperature

Explanation:

DERIVATION:

R-RESITANCE , L-LENGTH OF WIRE , A = IS THE AREA OF CROSS SECTION.

R IS PROPORTIONAL TO L

NOW R IS PROPORTIONAL TO L/A

SO, R=RHO*L/A