^Two series cells in oppostions
Two series cells in oppostions
As the two cells are opposing thus
ξnet =ξ1 – ξ2 , rnet = r1 + r2
V1 = ξ1 – Ir1, V2 = ξ2 + I r2
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^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.
^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
