does constant magnetic field in a coil induce current in it justify
Answers
Our thinking about magnetic sources has changed considerably over the centuries. The only form of magnetism known until the 19th century was ferromagnetism. Certain materials, when "magnetized", would attract certain other materials. The only materials attracted by a magnet were those that could become magnetized themselves. Since only certain materials exhibited magnetic properties, scientists concluded that magnetism was an inherent property of materials.
Then, in the 19th century, scientists studying the relatively new field of electrical currents discovered that moving charges produce magnetic effects. A current traveling through a loop of wire creates a magnetic field along the axis of the loop. The direction of the field inside the loop can be found by curling the fingers of the right hand in the direction of the current through the loop; the thumb then points in the direction of the magnetic field. With this discovery, magnetism appeared to occur in two different manners: ferromagnetism depending on the material, and electromagnetsim caused by currents.
No because contast flowing current did not change its direction of magnetic field which in result doesn't prroduce induce current