A long wire and a coil lie in one plane, and a current of 4A flows through the wire, and a aurreni flows through the coil Its intensity is 10A, so if the coil is in the form of a rectangle, its dimensions are 20 am * 10 cm, and the number of turns is 40, and the nearest side is long wire is 10 cm away from the wire, so the force applied to one of the two short sides by the long wire is:

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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.