Question

if the length and area of cross section of a copper wire is changed guess the changes in the specific resistance of copper wire​

Answer 1

Answer:

if length and area of copper wire is increased then the resistance is also increase. if decreased the the length and area of copper wire then it's resistance will decrease.

Answer 2

Explanation:

we know that RESISTANCE of a conductor is directly proportional to the length of the wire, but RESISTANCE is inversely proportional to the area of cross section .

so we can say if the length of the wire increased then resistance will also increase,if length is decreased resistance offered by the wire will also decrease

if the area of cross section increased then resistance will decrease as current will get more space to move freely,if area of cross section is decreased then resistance will increase