The force on a wire is a maximum of 4.50×10−2 NN when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on. A). What type of magnetic pole is the top pole face?   B). If the pole faces have a diameter of 19.0 cm , estimate the current in the wire if the field is 0.180 T.   C). If the wire is tipped so that it makes an angle of 12.0∘ with the horizontal, what force will it now feel? [Hint: What length of wire will now be in the field?]

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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.