A long horizontal fixed wire carries a current of 100 A. Directly above and parallel to it is another wire carrying a current of 20 A and weighing 0.04 N/m. The separation between the two wires so that the upper wire is just supported by the magnetic repulsion is
(A.)
3 cm
(B.)
2 cm
(C.)
1 cm
(D.)
4 cm
/wp-content/uploads/2021/04/logo-2.png00kp-web-admin/wp-content/uploads/2021/04/logo-2.pngkp-web-admin2021-12-04 17:32:472021-12-04 17:51:57A long horizontal fixed wire carries a current of 100 A.
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