Force on Parallel Wires: a Rectangular Loop of Wire Measures

question 6

Multiple Choice

Force on parallel wires: A rectangular loop of wire measures 1.0 m by 1.0 cm. If a 7.0-A current flows through the wire, what is the magnitude of the magnetic force on the centermost 1.0-cm segment of the 1.0-m side of the loop? (μ₀ = 4π × 10^-7 T ∙ m/A)

• A) 9.8 × 10^-6 N
• B) 7.8 × 10^-7 N
• C) 9.8 × 10^-8 N
• D) 4.9 × 10^-6 N

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