Three Long,straight,parallel Wires Each Carry a Current of 10 a in the Positive

question 129

Multiple Choice

Three long,straight,parallel wires each carry a current of 10 A in the positive x direction.If the distance between each wire and the other two is 10 cm,what is the magnitude of the magnetic force on a 20-cm length of either of the wires?

• A)57 \(\mu\)N
• B)40 \(\mu\)N
• C)69 \(\mu\)N
• D)50 \(\mu\)N
• E)20 \(\mu\)N

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