Tel: +86-13817790968
Email: [email protected]
Tel: +86-13817790968
Email: [email protected]
Bar Magnets make great helpers to teach us about the world. They are unique due to the magnetic field they carry around them. Things like paperclips or nails can be drawn to the magnet by this magnetic field, as though it were an invisible force. We are going to explain how small disc magnetss work through fun, simple science experiments and where we can find them in our day-to-day life.
For those unfamiliar with small disc magnetss, below is a simple primer to help you get started. Bar magnet: A bar magnet is a simple item of iron or other metal. It has 2 ends (welp call this as North and South Poles. Those ends are so important because they determine how the magnet looks like, that it reacts to magnets in other agriculture. North pole and South Pool stick together when Two opposite poles are brought closer to each other. When you try to put same poles together (north/north or south/south poles), they will repell each other, not attract. It is a property which defines our magnets and what makes them so intriguing!
Bar magnets can be used for a lot of fun experiments that lets you explore more! A fun experiement is creating a basic compass. For that, you can take a needle and rub along it over a steel and magnets in one direction many times. Finally, place the cork with the needle in its appropriate position. Finally, place the cork into a bowl of water. If you did it correctly, the needle should be pointing to the north! Whatever the reason, it tells us something about how magnets can be used to find direction.
One of the experiments that may be observed is to see how the magnetic field around a steel and magnets functions. This can be achieved by keeping the bar magnet on any flat surface like a table. Next, scatter some iron filings around the magnet. When you do that, you will see the filings begin to stack in patterns. We can see the shape of the magnetic field by looking at these patterns, so tecnically this would mean we are actually seeing!
The most remarkable and unique thing for a bar magnet is its magnetic field. Basically, this field is a hidden power; it can attract or repel objects towards the field. Magnetic field is generated by electrons that rotate in a specific direction. These electrons, when many of them all spin together in the same direction, create a magnetic field. A magnet, for one easy example of measuring spin, is just a beautiful way one half of the universe has opposite spins of every single particle it can find. These are what attract so strongly to each other at north and south poles. The magnetic field strength is highest at the poles and decreases as you get farther away from the magnet.
The magnetic field of the bar magnet is what allows it to attract some materials. The magnetic field of a magnet near to a piece of metal, such as a paperclip, influences the electrons in that metal. This magnetic field, pushes and pulls the electrons pushing them to move around. After matching the electric field they line up with the magnetic field, which is magnetized metal hence there stick to the magnet. This is why a bar magnet can pick up paperclips {get it))
We see an example of how using bar magnets is done in security systems at many stores. Most shops have a small electronic device sitting at the front door (sometimes both in and out) which cause an alarm to sound if that magnetic tag (usually sticked on the clothes) is detected passing through. These markers have a small bar magnet inside. The tag has a little magnet that interacts with the sensor's magnetic field when it gets nearby to trigger an alarm if someone tries to leave the store without paying.
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