Electricity and Magnetism (A) Write down the law that makes the connection between Electricity and Magnetism.  (B) What is the basic difference between this Law (question A) and Faraday’s Law of Induction?  (C) If a static magnetic field can’t produce a current than in which situation, we use Lenz’s law to define the current direction. Explain with example.

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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.