If you live in Bozeman, Montana, you will find that the magnetic field has a strength of about 5 x 10-5 T. The vector is directed northward, but it is not parallel to the ground. It actually dips 70° below the horizontal (i.e., it is only 20° away from pointing straight into the ground). In a laboratory in Bozeman, Montana, a proton is moving horizontally, parallel to the floor, and toward magnetic east at a speed of 5 x 106 mis. What are the magnitude and direction of the magnetic force on the proton? [Hint: Start by drawing a picture]

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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.