A wire is placed at right angles (0 = 90.0°) to the lines of magnetic flux between the poles of a horseshoe magnet. The length of the wire in the field is 78.0 mm and the field strength is 0.910 T. If the current in the wire is 4.10 A: (a) Calculate the force on the wire, giving your answer in newtons (N) to 3 significant figures. Force when - 90.0⁰: N (b) If the wire is rotated so that it is 30.0° to the magnetic field, calculate the new force, giving your answer in newtons (N) to 3 significant figures. Force when 0 = 30.0°: N

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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.