The figure shows a cross section of three parallel wires each carrying a current of 20 A.The currents in wires A and B are out of the paper,while that in wire C is into the paper.If the distance R = 5.0 mm,what is the magnitude of the force on a 2.0-m length of wire A?
A)23 mN
B)64 mN
C)32 mN
D)46 mN
E)55 mN

Question

The figure shows a cross section of three parallel wires each carrying a current of 20 A.The currents in wires A and B are out of the paper,while that in wire C is into the paper.If the distance R = 5.0 mm,what is the magnitude of the force on a 2.0-m length of wire A? 
A)23 mN 
B)64 mN 
C)32 mN 
D)46 mN 
E)55 mN

Quizplus · Accepted Answer

The Answer of The figure shows a cross section of three parallel wires each carrying a current of 20 A.The currents in wires A and B are out of the paper,while that in wire C is into the paper.If the distance R = 5.0 mm,what is the magnitude of the force on a 2.0-m length of wire A? 
A)23 mN 
B)64 mN 
C)32 mN 
D)46 mN 
E)55 mN

The Figure Shows a Cross Section of Three Parallel Wires