Mathematics · Magnetic Effects of Current
Two long parallel straight wires of equal lengths are separated by a distance of 3 m. The currents flowing through the first and second wires are 3 A and 4.5 A respectively, in opposite directions. The magnitude of the resultant magnetic field at the midpoint between the wires is (μ0 = permeability of free space):
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 15μ02π✓
- 27μ02π
- 33μ02π
- 4μ02π
Correct answer
5μ02π
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