Our Homopolar Electromagnetic Motor
- Step 1: Materials Needed 1 foot long wire (copper wire) ...
- Step 2: Tools Needed Pliers (small tipped) ...
- Step 3: Forming the Wire 1) Find the middle of your wire and make a good size twist in it. ...
- Step 4: How the Wire Should Look ...
- Step 5: Size ...
- Step 6: Magnets ...
- Step 7: Putting It Together ...
- Step 8: Still Putting It All Together ...
How to make an electromagnet step by step?
How to Make an Electromagnet Step 1: Electromagnet Experiment. The wire turns are often wound around a magnetic core made from a ferromagnetic or... Step 2: Homemade Electromagnet. For this project, we will need an electrical pump. A pump is a device that moves fluids... Step 3: Discover the ...
How do you make a magnet with wire and iron?
Get a large spindle of wire and make as many wraps as you can around an iron nail or screw to create a very powerful magnet, adding several layers of wire on top of one another, if desired. Use the small piece of iron for this, such as a nail, screw, or bolt. Wrap the wire in a single direction going around the piece of iron.
How do you make a coil out of a wire?
Procedure Starting in the center of the wire, wrap the wire tightly and neatly around the marker 30 times. Slide the coil you made off of the marker. Wrap each loose end of the wire around the coil a few times to hold it together, then point the wires away from the loop, as shown:
How do you make a strong magnetic field?
Find a larger piece of metal to create a stronger magnetic field. Instead of using a nail, try using a metal rod that's about 1 ft (30 cm) long and 1 cm (0.39 in) in diameter. Be sure to use it with a power pack to create a stronger magnet.
How to wrap a battery wire?
How to make an electromagnet?
How to wrap wire around iron?
Why is it important to wrap wires in the same direction?
Why is it important to curl the ends of the battery wires?
What color does wire turn when you remove insulation?
What to do if battery gets hot?
See 4 more
About this website
Step 4: How the Wire Should Look
The wire should look like the wire in the picture but maybe a bit nicer.
Step 6: Magnets
We used Ceramic Disc Magnets. So to make the motor work with the magnets we are using aluminum foil that we are going to wrap around the magnets. All we did was get a pice of aluminum foil and wrapped it around four Ceramic Disc Magnets.
Step 11: Tips
If you flip your magnet upside down and put the wire on the negative side, your motor would spin the opposite direction but it will spin a lot slower.
Step 13: Tips
For this homopolar electromagnetic motor, small batteries like A or AA wouldn't work.
How to wrap a battery wire?
Before you start wrapping the wire, leave a strand of wire loose from the iron that will attach to the battery that's about 2–3 inches (5.1–7.6 cm) long. Position the wire so that it’s perpendicular to the iron core and at one end. 4. Wrap insulated copper wire around the iron going in one direction.
How to make an electromagnet?
To create a simple electromagnet, you'll need a source of electricity, a conductor, and metal. Wrap insulated copper wire tightly around an iron screw or nail before connecting the wire to a battery, and watch as your new electromagnet picks up small metal objects.
How to wrap wire around iron?
1. Choose an iron nail or screw as the core. Pick out a piece of iron that you have around your home, such as a nail, screw, or bolt. Choose an iron item 3–6 inches (7.6–15.2 cm) in length so that there’s plenty of room to wrap the wire around the iron object.
Why is it important to wrap wires in the same direction?
It's essential that the wire is wrapped in the same direction so the electricity flows in one direction. If you wrap the wire in different directions, the electricity will flow in different directions, and you won't create a magnetic field.
Why is it important to curl the ends of the battery wires?
Curling the ends of the wires helps the battery maintain good contact with the wire.
What color does wire turn when you remove insulation?
As you remove the insulation, the wire will turn from the copper color of the insulation to the natural silver color of the wire.
What to do if battery gets hot?
If the battery becomes hot, use a small towel to hold the wires to the battery.
Why do north and south magnetic fields stick together?
North-south interactions stick together, and north-north and south-south interactions repel each other. Because the magnetic field created by the current in the wire is not perpendicular to the magnet taped to the battery, at least some part of the wire’s magnetic field will repel and cause the coil to continue to spin.
Why does a magnet only spin in one direction?
The reason that the magnet only spins in one direction is because spinning in the wrong direction will not cause the magnetic fields to repel each other, but attract. Disclaimer and Safety Precautions. Education.com provides the Science Fair Project Ideas for informational purposes only.
Why do we need to remove the insulation from only one side of each wire?
So why did we need to remove the insulation from only one side of each wire? We need a way to periodically break the circuit so that it pulses on and off in time with the rotation of the coil. Otherwise, the copper coil’s magnetic field would align with the magnet’s magnetic field and stop moving because both fields would attract each other. The way we set up our engine makes it so that whenever current is moving through the coil (giving it a magnetic field), the coil is in a good position to be repelled by the stationary magnet’s magnetic field. Whenever the coil isn’t being actively repelled (during those split second intervals where the circuit is switched off), momentum carries it around until it’s in the right position to complete the circuit, induce a new magnetic field, and be repelled by the stationary magnet again.
How to thread a wire coil?
Thread each loose end of the wire coil through the large eye of a needle. Try to keep the coil as straight as possible without bending the wire ends.
When a coil isn't being actively repelled, what happens?
Whenever the coil isn’t being actively repelled (during those split second intervals where the circuit is switched off), momentum carries it around until it’s in the right position to complete the circuit, induce a new magnetic field, and be repelled by the stationary magnet again.
What is a closed loop circuit?
The metal, needles, and wire created a closed loop circuit that can carry current. Current flows from the negative terminal of the battery, through the circuit, and to the positive terminal of the battery. Current in a closed loop also creates its own magnetic field, which you can determine by the “Right Hand Rule.”.
How does electricity work?
Electric motors work due to electromagnetic interactions: the interaction of current (the flow of electrons) and a magnetic field.
What is the first step in the Electromagnet Experiment?
Step 1: Electromagnet Experiment. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.
What is an electromagnet?
already made just waiting to be discovered. An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of insulated wire wound into a coil. A current through the wire creates a magnetic field which is concentrated ...
Do electromagnets need electricity?
However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field. A simple electromagnet consisting of a coil of insulated wire wrapped around an iron core.
How do pumps work?
Pumps operate by some mechanism (typically reciprocating or rotary) and consume energy to perform mechanical work by moving the fluid.
Why was Sturgeon's iron varnished?
The iron was varnished. to insulate it from the windings. When a current was passed through the coil, the iron became magnetized and attracted other pieces of iron; when the current was stopped, it lost magnetization. Sturgeon displayed its power by showing that although it only weighed.
Does electromagnet connect to wires?
electromagnet connect the wires, it doesn't matter as long the wires from the washing machine pump are. connected to the wires of the homemade electromagnet.And now just turn the small wheel (nob) of the. washing machine pump.....Amazing.... Ask Question.
Who discovered the magnetic field?
Danish scientist Hans Christian Ørsted discovered in 1820 that electric currents create magnetic fields. British scientist William Sturgeon invented the electromagnet in 1824. His first electromagnet was a horseshoe-shaped piece of iron that was wrapped with about 18 turns of bare copper wire (insulated wire didn't exist yet).
Did this article help you?
Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy.
How to make an electric motor?
To begin building a simple electric motor, make a coil by wrapping insulated copper wire around something hard, like a few pencils. Then, use wire strippers to remove the insulation on each end of the wire.
Why do you use sandpaper on a battery?
The article is actually referring to sandpaper. You use sandpaper because the wire used for making the coil is enameled copper wire , which means the copper wire has an insulation coating. To ensure that there is proper contact between the coil end and the battery lead, you need to remove this enamel coating. So you use sandpaper to rub it off.
What happens if a magnet coil doesn't spin?
Depending on the direction the current is flowing and the side of the magnet that is interacting with the coil, the coil may continue to spin or may not. If the coil does not keep spinning, try spinning the other direction. ...
How to get the coil to spin faster?
The coil may spin faster, slower, or not at all if you change something. Try moving the magnet closer to or further from the coil, pick a stronger or weaker magnet, or use the other side of the magnet. These variations are a fun way to understand the forces in an electric motor.
What to do if your wires are too hot?
If your wires are getting too hot, you could increase the wire size (thickness/gauge) or decrease the amount of power (use a smaller battery). Since it isn't turning, I would avoid decreasing the power. Try a thicker wire.
How many testimonials does wikihow have?
wikiHow marks an article as reader-approved once it receives enough positive feedback. This article received 21 testimonials and 82% of readers who voted found it helpful, earning it our reader-approved status.
How to hold DC generator on cardboard?
With the use of tape, put the DC generator on the cardboard to hold it.
How to put two CDs together?
Glue the two CDs together while using the black gear. (Remember, the gear's purpose is to create space between the CDs, and be able to spin it easily.)
How to get CDs out of the hole?
Use a toothpick, craft sticks, or a bamboo skewer, and put it through the hole created between the CDs and the gear.
What happens when you apply motion energy to a generator?
Essentially, when you apply motion energy to a generator, the copper coil within the magnet rotates repeatedly, creating a magnetic field.
What is an electric generator?
An electric generator is a device that converts mechanical energy from another source into electrical energy
How to wrap a battery wire?
Before you start wrapping the wire, leave a strand of wire loose from the iron that will attach to the battery that's about 2–3 inches (5.1–7.6 cm) long. Position the wire so that it’s perpendicular to the iron core and at one end. 4. Wrap insulated copper wire around the iron going in one direction.
How to make an electromagnet?
To create a simple electromagnet, you'll need a source of electricity, a conductor, and metal. Wrap insulated copper wire tightly around an iron screw or nail before connecting the wire to a battery, and watch as your new electromagnet picks up small metal objects.
How to wrap wire around iron?
1. Choose an iron nail or screw as the core. Pick out a piece of iron that you have around your home, such as a nail, screw, or bolt. Choose an iron item 3–6 inches (7.6–15.2 cm) in length so that there’s plenty of room to wrap the wire around the iron object.
Why is it important to wrap wires in the same direction?
It's essential that the wire is wrapped in the same direction so the electricity flows in one direction. If you wrap the wire in different directions, the electricity will flow in different directions, and you won't create a magnetic field.
Why is it important to curl the ends of the battery wires?
Curling the ends of the wires helps the battery maintain good contact with the wire.
What color does wire turn when you remove insulation?
As you remove the insulation, the wire will turn from the copper color of the insulation to the natural silver color of the wire.
What to do if battery gets hot?
If the battery becomes hot, use a small towel to hold the wires to the battery.
