20 A horizontal overhead power line is at a he of 4m from

Last updated: 6/11/2023

20 A horizontal overhead power line is at a he of 4m from the ground and carries a current 100 A from east to west The magnetic field dire below it on the ground is 4x107TmA 1 2 5 x 107T southward 2 5 x 106 T northward 3 5 x 106 T southward 4 2 5 x 107 T northward