a physics laboratory experiment, a coil with 200 turns enclosing an area of 12cm2 is rotated in 0.040s from a position where its plane is perpendicular to the earth’s magnetic field to one where its plane is parallel to the field. The earth’s magnetic field at the lab location is 6.0x10-5T. (a) What is the total magnetic flux through the coil before it is rotated? (b) What is the total magnetic flux through the coil after it is rotated? (c) What is the average emf induced in the coil?

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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.