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Magnetic Field 1) Magnetic Field is a region or space around a magnet or  current  carrying conductor or a moving charge, in which its magnetic effect can be felt. 2) The  conductor  carrying current is electrically natural but a magnetic field is associated with it. 3) The strength of magnetic field at a point is represented by the vector B, Which is called magnetic field induction or magnetic flux density vector. 4) Magnetic field induction is a vector quantity. 5) A magnetic field is represented by the lines of magnetic induction. 6) The lines of magnetic induction are closed curve (i.e. continuous curves, without any indication of starting or ending point). 7) If the lines of magnetic induction are a region is crowded together, the magnetic field strength in that region will be strong. If the lines of magnetic induction are a region are far apart, there the magnetic field strength is weak. 8) The lines of magnetic induction far a uniform magneti...