A 3.5 m wire carries a current of 5.5 A. The direction of the conventional current is due west. The strength of Earth’s magnetic field at the location of the wire is 6.0 x 10-5 T and the orientation of the field is north. Both the wire and Earth’s magnetic field are horizontal. (a) What is the magnitude and direction of Earth’s magnetic force on the wire? (b) What will the force on the wire be if the wire is rotated to an angle of 720 with the magnetic 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.