Remote Control Magnet Force: Possible?

[ChBhHu]

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.

 

[Baluncore]

Welcome to PF.
Do you mean an electromagnet with a remote control?
https://en.wikipedia.org/wiki/Electromagnet

 

[jrmichler]

Or do you mean how to switch a permanent magnet on and off? This is a magnetic base for dial indicators:

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

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.

 

[ChBhHu]

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?

 

[berkeman]

thank you, then what is the proper way in raising or lowering the amount of force that a magnet exert?

https://www.hsmagnets.com/blog/magnetic-switchable-device/

 

[ChBhHu]

View attachment 290912
https://www.hsmagnets.com/blog/magnetic-switchable-device/

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?

 

[phinds]

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.

 

[Baluncore]

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?