- #1
brian.green
- 27
- 2
Exactly what and how generate EMF in a coil when I move a bar magnet in it? How the changing magnetic field makes electrons to move? (I mean quantum mechanically.)
As I read somewhere when I close the circuit (put a load, a LED for example on the coil) the generated current in the coil will be "curled" but what does it mean visually? Electrons go around and around in a small circle path? How far these electrons can move in the wire at all?
How can I calculate the wattage what I can generate, what is the equation? (wire diameter, turn on the coil, strength of the magnet (the B field), velocity of the magnet, angel between the coil and the magnetic field...)
As I read somewhere when I close the circuit (put a load, a LED for example on the coil) the generated current in the coil will be "curled" but what does it mean visually? Electrons go around and around in a small circle path? How far these electrons can move in the wire at all?
How can I calculate the wattage what I can generate, what is the equation? (wire diameter, turn on the coil, strength of the magnet (the B field), velocity of the magnet, angel between the coil and the magnetic field...)