A wire of mass 10 grams and length 50 cm carries a Southward current of 2A while resting on a horizontal table on Earth. 1. a) If a vertically downward uniform magnetic field of 0.2 T is applied, determine the direction and magnitude of the magnetic force on the wire. 2. b) Determine the acceleration of the wire if its coefficient of kinetic friction with the table is 0.4. 3. c) Determine the direction and magnitude of the smallest uniform magnetic field required to levitate the wire. O 0:IT

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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.