Two long and parallel straight wires A and B carrying currents of 8.0 A and 5.0 A in the same direction are separated by a distance of 4.0 cm. Estimate the force on a 10 cm section of wire A, in newtons?

expects 2 × 10⁻⁵ N

24 checks, 0 agreed

draft 24: failed in solution.rb, line 7 — ArgumentError: two_parallel_wires gives nothing called length_in_the_field

solution.rb · draft 24 stopped at line 7

1solve :two_parallel_wires, using: [ MagneticFieldOfCurrents, MagneticForce ] do2  objects :a, :b34  take current_a: a.current5  take current_b: b.current6  take separation: a.distance_from_the_wire(by: b)7  take length_in_the_field: a.length_in_the_fieldArgumentError: two_parallel_wires gives nothing called length_in_the_field891011  B = b.field_near_a_wire12  force = a.force_on_a_wire1314  answer force:, in: "N", figures: 21516  conclusion "Wire B produces a magnetic field at wire A, and wire A feels a force due to that field."17end