2. Two long straight parallel wires separated by a distance of 20 cm carry currents of 30 A and 40 A in opposite directions. What is the magnitude of the resulting magnetic field at a point that is 15 cm from the wire carrying the 30 A current and 25 cm from the other wire?
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The formula for the magnetic field B produced by a long straight wire at a distance r from the wire is given by: B = μ0I / (2πr) where μ0 is the permeability of free space (4π x 10^-7 T m/A), I is the current in the wire, and r is the distance from the Show more…
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