A small rectangular coil of 6 by 4 mm is placed in the middle of a solenoid of 40 mm length having 100 turns and carrying current of 3.2 A, see sketch below (assume that the area of the coil is in the plane of the sketch ). Calculate the force on each side of the rectangular coil due to magnetic field of the solenoid given that the current of 2.0 A is passed through the small coil. Give your answer in micro-Newtons (?μN, 1 ?μN = 10-6 N). Take ?0=4?×10−7μ0=4π×10−7 H/m.

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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.