Question:
Two parallel long wires carry currents i and i with i i When
Last updated: 6/12/2023
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Two parallel long wires carry currents i and i with i i When the current are in the same direction the magnetic field at a point midway between the wire is 20 T If the direction of i is reversed the field become 30 T The ratio i i is 1 4 3 5 2 3 4 1