DC Motor 3D Simulator for Android

11 things about DC Motor 3D Simulator

1. A swing back and fro motion (maybe θ = 90o increase to 270o and decrease back to 90o) is all you would get out of this motor if it weren't for the split-ring commutator — the circular metal device split into parts (shown here in teal with a gap of β2) that connects the armature to the circuit.

2. The armature, carrying current provided by the battery, is an electromagnet, because a current-carrying wire generates a magnetic field; invisible magnetic field lines are circulating all around the wire of the armature.

3. A current-carrying loop that is placed in a magnetic field experiences a turning effect.A simple direct current (DC) motor is illustrated here.

4. My sincere gratitude for the tireless contributions of Francisco Esquembre, Fu-Kwun Hwang, Wolfgang Christian, Félix Jesús Garcia Clemente, Anne Cox, Andrew Duffy, Todd Timberlake and many more in the Open Source Physics community.

5. The motor features a external magnet (called the stator because it’s fixed in place) and an turning coil of wire called an armature ( rotor or coil, because it rotates).

6. This interplay of magnetic fields and moving charged particles (the electrons in the current) results in the magnetic force (depicted by the green arrows) that makes the armature spin because of the torque.

7. The key to producing motion is positioning the electromagnet within the magnetic field of the permanent magnet (its field runs from its north to south poles).

8. This simulation has real 3D perspective view and is targeted for O level Physics education, has a split-ring commutator designed inside it.

9. The purpose of the commutator is to reverses the direction of the current in the loop ABCD for every half a cycle.

10. An open source physics at Singapore simulation based on codes written by Fu-Kwun Hwang and Loo Kang WEE.

11. The checkbox current flow & electron flow alows different visualization since I = d(Q)/dt and Q= number of charge*e.