When length of copper wire is doubled then resistivity becomes ______?
When length of copper wire is doubled then resistivity becomes ______?
جب تانبے کے تار کی لمبائی دوگنی ہو جاتی ہے تو مزاحمت ______ ہو جاتی ہے؟
Explanation
When the length of a copper wire is doubled, the resistivity remains the same.
Resistivity is an intrinsic property of the material and does not change with the dimensions of the wire.
However, the resistance will double, as resistance is directly proportional to the length of the wire.