- #1
i_m_mimi
- 17
- 0
Homework Statement
How do motors work? Is what I have right so far?
The attempt at a solution
Generators: I understand that a coil moves and it cuts across the magnetic flux lines in a magnetic field, emf is induced. So mechanical energy (coil moving) changes into current from the emf (electrical energy).
Motors: A current exists in the coil and it will experience a force in the magnetic field causing it to turn. When it turns, it will 'become a generator' and induce it's own emf. This emf will be in the opposite direction of the source emf... that's why it's called counter emf... So then what happens?
How do motors work? Is what I have right so far?
The attempt at a solution
Generators: I understand that a coil moves and it cuts across the magnetic flux lines in a magnetic field, emf is induced. So mechanical energy (coil moving) changes into current from the emf (electrical energy).
Motors: A current exists in the coil and it will experience a force in the magnetic field causing it to turn. When it turns, it will 'become a generator' and induce it's own emf. This emf will be in the opposite direction of the source emf... that's why it's called counter emf... So then what happens?