Three coplanar parallel straight wires carry equal currents I as shown below. The current in the outer wires is directed to the right, and that in the middle wire is directed to the left. Each pair of wires is a distance a apart. The direction of the magnetic force on the middle wire I Select one: a. is up out of the plane of the wires. b. is down into the plane of the wires. c. cannot be defined, because there is no magnetic force on the middle wire. d. is in the plane of the wires, directed upwards.

Three coplanar parallel straight wires carry equal currents I as shown below. The current in the outer wires is directed to the right, and that in the middle wire is directed to the left. Each pair of wires is a distance a apart. The direction of the magnetic force on the middle wire I Select one: a. is up out of the plane of the wires. b. is down into the plane of the wires. c. cannot be defined, because there is no magnetic force on the middle wire. d. is in the plane of the wires, directed upwards.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter31: Gauss’s Law For Magnetism And Ampère’s Law

Section31.4: Special Case: Linear Symmetry

Problem 31.4CE: Magnetic Field Due to a Long, Straight Wire In a laboratory, you measure the magnitude of the...

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