Please anybody clear my doubt.. I'cant know from where the electrons come when a current is generated by the movement of a coil in a magnetic field fixed. I think they are sent from of free electrons of the matter of the magnet or of the core of the electromagnet . Does the power lines are electrons circling the north pole to the south, as in atoms, and when a coil is moved electrons are captured. Small amount of matter can provide a lot of energy.

Question

Please anybody clear my doubt.. I'cant know from where the electrons come when a current is generated by the movement of a coil  in a magnetic field fixed. I think they are sent from of free electrons of the matter of the magnet or of the core of the electromagnet . Does the power lines are electrons circling the north pole to the south, as in atoms, and when a coil is moved electrons are captured. Small amount of matter can provide a lot of energy.

anonymous · Answer

although electrically neutral, conductors have electrons which are free to migrate in the presence of an electric field (valence band). A changing magnetic field gives rise to an electric field (a potential difference or emf) within the conductor which causes the electrons already present within the wire to move

anonymous · Answer

The electrons are not from the magnet, they are the free electrons in the conductors (the wires, coils...etc), and you dont need any more because they complete a closed loop and return to start againg their path. Hope i could help.

anonymous · Answer

the movement of the coil relative to the magnetic field only serves to produce an electric field. the flow of current is entirely due to movement of electrons in conductors under the influence of the generated electric field. the magnitude of current depends on the resistance of coil material. you get (comparitively) high current if a low resistance material like copper is used and (comparitively) low current if you use a high resistance material.