An alpha particle travels in a uniform magnetic field that is perpendicular to the direction of the alpha particle's motion. A magnetic force exerted on the alpha particle causes the particle to follow a circular path. The strength of the magnetic field is 0.100 T. When the particle first enters the field, it has a radius of curvature of 3.50 cm. II• Alpha particle Direction of motion of alpha particle at a particular instant I• x Indicates magnetic field directed into the page

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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.