A horizontal magnetic field of 1 x 10-11 T (Teslas) exists at an angle of 30 degrees to the direction of the current in a straight, horizontal wire 75cm long. If the wire carries a current of 15A (amps): a. What is the magnitude of force on the wire, expressed in Newtons (N)?   b. What angle would be required for the force to be half the value calculated in part (a), assuming nothing else is changed?

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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.