A conducting loop around a bar magnet begins to move away from the magnet. Which of the following statements is true? a. The magnet and the loop repel one another. b. The magnet and the loop attract one another. c. The magnet is attracted, but the loop is repelled. d. The magnet is repelled, but the loop is attracted. e. The magnet and loop neither attract nor repel one another.

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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.