A conducting bar of length moves to the right on two frictionless rails as shown in the figure below. A uniform magnetic field directed into the page has a magnitude of 0.330 T. Assume R = 8.90 12 and = 0.370 m. x x x x X x x x x x v counterclockwise into the page out of the page x x x x xxx x x x x x x Bin G (a) At what constant speed should the bar move to produce an 8.60-mA current in the resistor? m/s (b) What is the direction of the induced current? clockwise (c) At what rate energy delivered to the resistor? mW (d) Explain the origin of the energy being delivered to the resistor.

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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.