# What is a homopolar motor used for?

## What is a homopolar motor used for?

A homopolar motor creates rotational movement because of what is known as the Lorentz force. What’s happening is that electrical current is flowing from the positive terminal of the battery to the negative and into the magnet.

What is a homopolar motor simple explanation?

A homopolar motor is a direct current (DC) electric motor which produces constant circular motion. Because the polarities of the magnetic fields do not change (hence the name homopolar), the direction of the force will not change and the wire will rotate in a constant circular motion.

What kind of magnet does a homopolar motor use?

neodymium disc magnet
The stronger the magnet, the faster the coil will spin. If using an AA battery to make a homopolar motor an ideal magnet to use is a 12mm diameter x 6mm thick neodymium disc magnet.

### What is a homopolar motor for kids?

First off, what is a homopolar motor. In short it is an electric motor. Copper wire, which conducts electricity, is made into a shape that connects the two ends of the battery, creating a continuous flow of electricity. The current travels through the copper wire back to the battery to complete the circuit.

Who invented homopolar motors?

Lawrence J. Giacoletto
Homopolar motor/Inventors

What are features of homopolar motor?

A homopolar motor is a direct current electric motor with two magnetic poles, the conductors of which always cut unidirectional lines of magnetic flux by rotating a conductor around a fixed axis so that the conductor is at right angles to a static magnetic field.

#### How do you increase the speed of a homopolar motor?

Hints for Improving the Performance of Homopolar Motors: Always use magnets that are slightly larger than the diameter of the battery. If they’re smaller, it can be hard to get the bottom of the armature to slide down the larger battery. If they are very much larger, they limit the shape of some armature designs.

Who invented the homopolar motor?

Why is it called Homopolar?

Homopolar motors have two magnetic poles that are provided by the permanent magnet that is used to create the magnetic field. The homopolar motor is named as this due to it being unlike conventional DC motors; the polarity of the magnetic field emitted by the conductor and the permanent magnets do not change!

## Who made the first homopolar motor?

How does a homopolar generator work?

Working principle of a homopolar generator: due to Lorentz force FL negative charges are driven towards center of the rotating disk, so that a voltage shows up between its center and its rim, with the negative pole at the center.

What are homopolar motors made out of?

Although not the configuration Faraday used, homopolar motors can be made out of a single AA or C battery, a single neodymium disc magnet and a piece of copper wire. They have two magnetic poles provided by the single permanent magnet that is used to produce the magnetic field, also required to generate rotational movement.

### What is the best magnet for a homopolar motor?

If using an AA battery to make a homopolar motar an ideal magnet to use is a 12mm diameter x 6mm thick neodymium disc magnet. electric motor experiments homopolar motor

What are some fun facts about Saturn?

Credit: NASA Here are some fun facts about the Ringed Planet. Saturn is huge. It is the second largest planet in our Solar System. Jupiter is the only planet that is bigger. You cannot stand on Saturn. It is not like Earth. Saturn is made mostly of gases. It has a lot of helium. This is the same kind of gas that you put in balloons.

Is it possible to turn a homopolar motor into a generator?

It is possible to turn a homopolar motor into a homopolar generator. If the conducting wire is physically turned, this motion will produce a current and a DC voltage between the battery terminals. This phenomenon was also discovered by Michael Faraday, who invented the Faraday disc.

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