Three infinitely long parallel wires carry currents /1 = 400.0 A, I2 = 300.0 A, and Is = 500.0 A in the directions shown in the figure below, with separation distance d = 10.0 cm in the vertical direction. a) What are the magnitudes and directions of the magnetic field at the location of each wire due to the other two wires? b) What are the magnitudes and directions of the magnetic force per unit length on each of the wires due to the other two wires? c) What is the mass per unit length of wire #2 if it is suspended at its location (i.e., the gravitational and magnetic forces on the wire are balanced)?

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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.