Remote Control Magnet Force: Possible?

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SUMMARY

The discussion centers on the feasibility of remotely controlling the force exerted by magnets, specifically through the use of electromagnets. Participants clarify that while permanent magnets cannot be switched on and off remotely, devices like magnetic bases and chucks utilize levers to control magnetization. To adjust the force of a magnet, increasing magnetism through electromagnets is suggested as a viable method. The conversation emphasizes that the approach depends on the specific application and desired outcomes.

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is it possible to create a remote that can control the force acting on a magnet? for example is, to stop one magnet from attracting or repulsing other metals. or making a magnet adjust the force it apply to other object.
 
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Or do you mean how to switch a permanent magnet on and off? This is a magnetic base for dial indicators:
Mag base.jpg

The lever switches the permanent magnet base on and off. And this is a magnetic chuck used in machine tools:
Mag table.jpg

It also has a lever to switch the magnets on and off.

In both cases, the lever rotates an internal permanent magnet so that the base/table surface is either magnetized or not magnetized.
 
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jrmichler said:
Or do you mean how to switch a permanent magnet on and off? This is a magnetic base for dial indicators:
View attachment 290898
The lever switches the permanent magnet base on and off. And this is a magnetic chuck used in machine tools:
View attachment 290899
It also has a lever to switch the magnets on and off.

In both cases, the lever rotates an internal permanent magnet so that the base/table surface is either magnetized or not magnetized.
thank you, then what is the proper way in raising or lowering the amount of force that a magnet exert?
 
ChBhHu said:
is it possible to increase the range of force that a magnet has? for example is typical magnet used inside a speaker. if it is can what is the best way to do it?
To increase the range of force, you have to increase the magnetism. That should be doable with an electromagnet.
 
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ChBhHu said:
is it possible to increase the range of force that a magnet has?
If it was both easy and needed, it was done long ago.
The method used will depend on what are you trying to achieve.
You need to explain; why do you need a stronger or a variable magnet?
 
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