Consider a pair of horizontal wires that are 2.0 [mm] apart and carry 2.0 [A] current in opposing directions. What force does one wire exert on the other per unit length? 1. 4.0 x 10^-4 N/m attractive 2. 4.0 x 10^-4 N/m repulsive 3. 2.0 x 10^-4 N/m attractive 4. 2.0 x 10^-4 N/m repulsive

Consider a pair of horizontal wires that are 2.0 [mm] apart and carry 2.0 [A] current in opposing directions. What force does one wire exert on the other per unit length? 1. 4.0 x 10^-4 N/m attractive 2. 4.0 x 10^-4 N/m repulsive 3. 2.0 x 10^-4 N/m attractive 4. 2.0 x 10^-4 N/m repulsive

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter22: Magnetism

Section: Chapter Questions

Problem 51PE: The force per meter between the two wires of a jumper cable being used to start a stalled car is...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

Consider a pair of horizontal wires that are 2.0 [mm] apart and carry 2.0 [A]
current in opposing directions. What force does one wire exert on the other
per unit length?
1. 4.0 x 10^-4 N/m attractive
2. 4.0 x 10^-4 N/m repulsive
3. 2.0 x 10^-4 N/m attractive
4. 2.0 x 10^-4 N/m repulsive

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