An electron (q=1.602×10-19 and m=9.11×10-31kg) moves in a circular path in a homogeneous magnetic field at a speed of 1.9×107 m/s. The magnetic flux density B=10-4 T and the direction of the electron velocity is perpendicular to the field lines. a) What is the radius of the circular path? b) What is the time spent in one round? c) What is the direction and magnitude of the electron's acceleration?

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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.