Fig. 2 shows, in cross section, two long parallel wires separated by distance d = 10 cm. Each carries 100 A, out of the page in wire1. What is the net magnetic field at point P at distance OP = 7.5 cm, due to the two currents? a/ The current in wire 2 is into the page. b/ The current in wire 2 is out of the page. c/ In case the current in wire 2 is out of the page, find locations on Ox where the net magnetic field is zero.

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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.