At a certain location, Earth has a magnetic field of 0.60 x10-4 T, pointing 75° below the horizontal in a north–southplane. A 10.0 - m - long straight wire carries a 15 - A current.(a) If the current is directed horizontally toward the east,what are the magnitude and direction of the magnetic forceon the wire? (b) What are the magnitude and direction of theforce if the current is directed vertically upward?

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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.