Match the following laws with their correct descriptions. : Ampère's law. Gauss's law in electrostatics. Coulomb's law Gauss's law for magnetism. Biot-Savart law. 1. The net flux through any closed surface is always zero. 2. The electric force exerted by one charge on a second charge is related to the magnitude of the charges and their separation. 3. The line integral of B⇀⋅ds⇀ around any closed path is equal to the product of the total current passing through a surface within the path and the permeability of free space. 4. The net flux through any closed surface is equal to the enclosed charge divided by the permittivity of free space. 5. The magnetic field at some point in space is related to both the current in and the distance from the wire element that induces the field.

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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.