.- A straight thread, of length 0.2 m and mass 8 - 103"kg, is located along the OX axis in the presence of a uniform magnetic field B= 0.5 j T a) Explain the direction that the current must have so that the magnetic force is direction opposite to the gravitational force, Fg =- Fg k b) Calculate the intensity of current necessary for the magnetic force to balance the yarn weight. g = 10 m s7

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A: I = 3A d =5m

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A:

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A:

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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.