In this article, I will show you how to make a DC motor on your own at home. The thing I used to build this are very basic, a battery(any battery AAA or AA or C or D works), a magnet, two safety pins and insulated copper wire.
Before we get into the actual making, let me share the concept that is behind the working of a DC motor, The Faradays laws of induction, this states that, a conductor with currents in it, creates electromagnetic field. And when a magnet(magnetic field ) is introduced. the conductor attains some torque, this helps it rotate.
Now, let’s start,
Step 1: Take the insulated copper wire and wind it on any cylinder shaped object to get a circular winding with a desired size, leave some wire on both ends for further connections. Glue it and tie the winding using the two ends.
The radius of the circle and the number of windings totally depend on the distance between the battery with the magnet and the bottom end of the winding. Because there shouldn’t be anything obstructing the windings rotation.
This should look as the one in the image below.
Step 2: Now, remove only the half coating, that is only the coating on one side of the wire on both right and left ends. Make sure that you only remove half coating, if you remove the coating on both side for both ends, the winding won’t rotate.
Step 3: Now, using a tape stick the two safety pins to the two terminals of the battery. As shown below. This completes the circuit. The current passes through the winding. This is kind of an insulation, if you observe, after some time, the winding gets heated up;) No, don’t wait for it now! Go-to step 4.
Step 4: Place the magnet on the battery, and the conductor starts to rotate.
There is an electromagnetic field and as soon as I introduced the magnetic field the coil started rotating. And make sure that you didn’t completely removed the coating of the wire at the two ends, only half of it is to be removed. If you remove it completely on both sides, then the coil moves to and fro but doesn’t complete the rotation.
To increase the speed of the coil, use 9v battery.
checkout the video below!
Thanks for reading, feel free to ask any question on this.