The magnetic field shown in the figure below has a uniform magnitude of 25.5 mT directed into the paper. The initial diameter of the kink is 2.00 cm. A• B 2.00 cm (a) The wire is quickly pulled taut, and the kink shrinks to a diameter of zero in 45.0 ms. Determine the average voltage induced between endpoints A and B. Include the polarity. 0.0177 magnitude Your response is off by a multiple of ten. mv B is positive relative to A. V polarity (b) Suppose the kink is undisturbed, but the magnetic field increases to 105 mT in 4.50 x 10-3 s. Determine the average voltage across terminals A and B, including polarity, during this period. magnitude mv polarity A is positive relative to B. V

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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.