A square coil is shown above. There is a current flowing in the coil which creates a magnetic moment i. The external magnetic field B is going to the right as shown. The coil starts in the position on the left and then rotates to the position shown on the right. The square coil has sides that are 0.250 m long. The coil has 313 turns of wire. The magnetic field has a magnitude of 66.0 T. The torque created is clockwise and has a magnitude of 1.679 x 104 m N. What is the magnitude of the current in the coil and as we look at the side of the coil facing us in the left picture, is the current going to the right or to the left?

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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.