Q4. A very long solenoid is wound with a turn density of 1 turn per mm length of the solenoid (n=1,000turns/meter). The current in the turns of the solenoid is I = 1 A. Calculate the magnetic field intensity and magnetic flux density everywhere in space. The current and dimensions are shown in Figure (in axial cross section). I=IA Ir=100 mm -n=1000 turns/meter Figure of Q4

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Magnetic Moment

The magnetic moment is defined as the alignment of a magnet and its strength when the magnet is creating a magnetic field. There are number of examples of the magnetic moment, few are a current carrying conductor in the form of coil, elements at microscopic levels like electrons and many more.