A metal wire of mass m=24.1g can slide with negligible friction on two parallel rails separated by a distance d=2.56cm. The system is in a uniform magnetic field of magnitude 56.3mT directed vertically upwards. At t=0 a device G is connected to the rails, producing a constant current i=29.2mA. a. The acceleration of the wire is:______m/s^2. b. When 2.0s have elapsed the speed of the wire is:______m/s. c. The wire will move towards:             1.the right             2.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.