A coil of 10.0 turns is in the shape of an ellipse havinga major axis of 10.0 cm and a minor axis of 4.00 cm. Thecoil rotates at 100. rpm in a region in which the magnitudeof Earth’s magnetic field is 55.0 µT. What is the maximumvoltage induced in the coil if the axis of rotation of the coilis along its major axis and is aligned (a) perpendicular toEarth’s magnetic field and (b) parallel to Earth’s magneticfield? Note: The area of an ellipse is given by A = πab, wherea is the length of the semimajor axis and b is the length of thesemiminor axis.

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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.