A toroid having a square cross-section, 4.00 cm on a side and an inner radius of 11.0 cm has 300 turns and carries a current of 0.750 A. (It is made up of a square solenoid bent into a doughnut shape.) (a) What is the magnitude of the magnetic field inside the toroid at the inner radius? _____________T(b) What is the magnitude of the magnetic field inside the toroid at the outer radius? _____________T (please show units. It really helps me out)

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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.