Mathematics · Electricity and Magnetism Calculations
Two parallel, long wires are kept 0.20 m apart in a vacuum, each carrying a current of x A in the same direction. If the force of attraction per meter of each wire is 2 × 10-6 N, then the value of x is approximately: (Take permeability of free space μ0 = 4π × 10-7 T·m/A)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.0 A
- 21.0 A
- 32.4 A
- 41.4 A✓
Correct answer
1.4 A
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