Control strength of permanent magnet

Thread starter athul jyothis
Start date Sep 11, 2015
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Control Magnet Permanent magnet Strength

In summary, the strength of a permanent magnet is determined by its composition and the strength of the magnetic field it is exposed to. The higher the strength of the magnetic field, the stronger the permanent magnet will become. Additionally, the type of material used in the magnet, such as iron, cobalt, or nickel, can also affect its strength. Permanent magnets are commonly used in a variety of applications, such as motors, generators, and magnetic storage devices, due to their ability to maintain a strong magnetic field over a long period of time.

Sep 11, 2015

athul jyothis

How to control magnetic field produced by a permanent magnet which is being induced on to a coil ?

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Sep 11, 2015

Nidum

Science Advisor

Gold Member

Don't quite understand your question but in general magnetic fields from permanent magnets can be shaped using pole pieces and strength of field decreases with distance from magnet .

Sep 11, 2015

athul jyothis

Thanks for your valuable reply

1. How is the strength of a permanent magnet measured?

The strength of a permanent magnet is typically measured using a device called a magnetometer, which can detect the magnetic field produced by the magnet. The unit of measurement for magnetic field strength is called a tesla (T).

2. Can the strength of a permanent magnet be increased?

Yes, the strength of a permanent magnet can be increased through a process called magnetization. This involves exposing the magnet to a strong external magnetic field or passing an electric current through it, causing the magnetic domains within the magnet to align in a specific direction, resulting in a stronger magnetic field.

3. What factors can affect the strength of a permanent magnet?

The strength of a permanent magnet can be affected by several factors, including the type of material used to make the magnet, its shape and size, the strength of the external magnetic field during magnetization, and the temperature at which the magnet is operated.

4. Is there a limit to how strong a permanent magnet can be?

Yes, there is a limit to how strong a permanent magnet can be. This limit is determined by the material properties of the magnet and the laws of physics. However, scientists are constantly researching and developing new materials and techniques to create stronger permanent magnets.

5. How can I control the strength of a permanent magnet?

The strength of a permanent magnet can be controlled by adjusting the external magnetic field during magnetization, changing the shape or size of the magnet, or changing the material used to make the magnet. However, once a permanent magnet is created, its strength cannot be easily changed or adjusted.