Two Long Parallel Wires That Are 0

question 24

Multiple Choice

Two long parallel wires that are 0.40 m apart carry currents of 10 A in opposite directions.What is the magnetic field strength in the plane of the wires at a point that is 20 cm from one wire and 60 cm from the other? (μ₀ = 4π × 10^-7 T ∙ m/A)

• A)3.3 µT
• B)6.7 µT
• C)33 µT
• D)67 µT

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