Two long wires (isolated from each other) carrying currents equal to I cross perpendicularly. Describe the net magnetic force that one wire exerts on the other. (b) A non-magnetized nail will not attract a paper clip. However, if one end of the nail is in contact with a magnet, the other end will attract the clip. Explain.

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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.