A long horizontal rigidly supported wire carries a current I1) = 200 A. Directly above it and parallel to it is a fine wire that carries a current I2 = 40 A and weights 0.073 nt/meter. i. How far above the lower wire should this second wire be strung to support it by magnetic repulsion? Assume u↓0 = 4π× 10ˉ7 weber/amp-m. [

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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.