Ask an Expert: simple electric motor

Post by shadowcat41172 » Tue Oct 15, 2019 10:19 am

1. The wire is not sanded completely on one end to result in a stop/start electrical flow. Correct???
2. The wire that is only half sanded should be on the paperclip attached to the positive terminal of the battery because the electricity flows from positive to negative and that is where we need to get our stop/start of the current to keep the coil spinning. Correct??
3. The North pole always pushes up and the south pole always pushes down on the magnet that is under the wire? Yes?
4. The magnet is exerting an upward/downward force on the wire because the wire is magnetic. Why though? The magnet is really pushing against itself? and the wire is caught up in this struggle or yeah because the magnet is pushing against its own poles within itself you get the up and down force on the wire?
5. Does the electrical force that is going through the wire travel from the positive terminal to negative terminal via the coil and back again in a continual loop that goes back and forth or is it unidirectional from positive to negative and stops?

Thank you
Mandy

[Administrator note: project:

My daughter is making the electric motor using a D 2 battery and the paper clips and magnetic wire in a coil. She sanded one end completely and left the other end half sanded. I want to make sure I understand some of these concepts from reading the background information before talking more to her about the project.1. The wire is not sanded completely on one end to result in a stop/start electrical flow. Correct???2. The wire that is only half sanded should be on the paperclip attached to the positive terminal of the battery because the electricity flows from positive to negative and that is where we need to get our stop/start of the current to keep the coil spinning. Correct??3. The North pole always pushes up and the south pole always pushes down on the magnet that is under the wire? Yes?4. The magnet is exerting an upward/downward force on the wire because the wire is magnetic. Why though? The magnet is really pushing against itself? and the wire is caught up in this struggle or yeah because the magnet is pushing against its own poles within itself you get the up and down force on the wire?5. Does the electrical force that is going through the wire travel from the positive terminal to negative terminal via the coil and back again in a continual loop that goes back and forth or is it unidirectional from positive to negative and stops?Thank youMandy[Administrator note: project: https://www.sciencebuddies.org/science- ... tric-motor