A wire 50 cm long and 1 mm2 in cross section carries a

Last updated: 6/27/2023

A wire 50 cm long and 1 mm2 in cross section carries a current of 4 A when connected to a 2V battery The resistivity of the wire is 1 2 x 10 7 22 m 3 4 x 10 6 m VA 2 5 x 10 7 22 m 4 1 x 10 6 m