Question

which wire among the both with procedure more current (I) wire of copper having resistance R , area A , length l. (ii) wire of copper having resistance R, area A, length l/2. why​

Answer 1

Answer:

We know that , R∝

A

l

;

So, the resistance of the wire will be minimum when the area of cross-section is maximum and length is minimum.the wire of cross-sectional area have maximum area and minimum length hence it will have minimum resistance out of all other combinations.