MY NOTES ASK YO Beams of electrons can be steered using magnets. It is desired to change the trajectory of a beam of electrons by passing the beam through a magnetic field as shown in the diagram, where r= 4.80 cm. The electrons enter the magnetic field at A and leave the magnetic field at B. Region of magnetic field A Tr-B (a) Draw a diagram showing the path followed by the electrons while they are in the magnetic field, i.e. the path from A to B. (b) The electrons have kinetic energies of 4.34 kev. You may assume that the magnetic force is the only force acting on the electrons. The mass of an electron is 9.11 x 1031 kg.

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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.