Magnetism and Magnetic Fields | Learn about types of magnets and how they work22 0 2024-11-22 11:36:46 您当前的浏览器不支持 HTML5 播放器 请更换浏览器再试试哦~点赞 投币 收藏 分享 https://www.youtube.com 知识 科学科普 英语 科普 英语学习 Treehouse...
How does a magnetron work?Magnetrons are horribly complicated. No, really—they're horribly complicated! To understand how they work, I find it helps to compare them to two other things that work in similar ways: an old-style TV set and a flute....
When you want to figure out the strength or direction of a magnetic field, a magnetometer is your tool of choice. They range from the simple–you can make one in your kitchen easily–to the complex, and the more advanced devices are regular passengers on space exploration missions. The firs...
Questions that often come up are, "How do magnets work?", or, "Why is iron magnetic?", or, "What makes a magnet?", or, "What is the magnetic field made of?".Those are good questions, and deserve a good answer. However, did you know that there is a lot about magnets at the ...
Earth is essentially a giant magnet with corresponding geomagnetic north and south poles, thanks to our molten iron outer core. The teardrop-shaped magnetic field Earth generates, which is squashed by solar winds and called the magnetosphere, ensures that our compasses work, provides for brilliant ...
There is a horizontal tube -- the same one the patient enters -- running through the magnet from front to back. This tube is known as the bore. But this isn't just any magnet -- we're dealing with an incredibly strong system here, one capable of producing a large, stable magnetic ...
How Does A Magnetic Disk Work? When I click save, how does it work? The spindle rotates the platter. The actuator arm makes a cross-over motion across the plate. The actuator arm sends your saved data to the read/write head. The head alters the polarity of a sector (a section of th...
This current generates a magnetic charge, and this natural magnetism of the Earth is what makes a compass work. A compass always points north because the metal needle is attracted to the pull of the North Pole. Electromagnets All Around Us Many electromagnets have an advantage over permanent ...
anelectromagnet. This magnet generates a field strong enough to change the direction of the metal grain’s magnetization. Once this information is written onto the disc, the drive uses a magnetic reader to turn it back into a useful form, much like aphonographneedle translates a record’s...
How does special relativity make magnets work? How is electromagnetism created? How to produce a uniform magnetic field. How does a magnetic field sensor work? Why is electromagnetism more useful than regular magnetism? How to create a magnetic field without electricity. ...