Question

WHY AREA OF CROSS SECTION GETS HALVED WHEN LENGTH IS DOUBLED IN RESITIVITY?

Answer 1

Answer:

the resistance of a conductor is directly proportional to its length. ... so if length is doubled resistance will also get doubled i.e resistance is 4 times that of original resistance. now, the resistance of a conductor is inversely proportional the area of cross section

If it helps then mrk me as BRAINLIEST

Answer 2

Resistance is directly proportional to area and inversely proportional to length. Hence if we increase resistance we get increased area and decreased length and vice - versa.