Two very long parallel wires carry currents of magnitude 2A and 3A respectively, going in opposite directions as shown below and separated by a distance of 5 cm. (i) What is the magnitude and direction of the force per unit length experienced by coil wire 2. (ii) What is the ratio of the magnitude of magnetic force per unit length experienced by wire 1 compared to wire 2.

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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.