Remote Control Magnet Force: Possible?

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Discussion Overview

The discussion revolves around the feasibility of remotely controlling the force exerted by magnets, including the ability to adjust their attraction or repulsion. Participants explore various concepts related to electromagnets, permanent magnets, and methods to modify magnetic force, with a focus on practical applications and theoretical implications.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the possibility of creating a remote control that can adjust the force of a magnet, questioning if it can stop magnets from attracting or repelling other metals.
  • Another participant suggests that the inquiry may pertain to electromagnets, which can be controlled remotely.
  • Several participants discuss the concept of switching permanent magnets on and off using mechanical levers, providing examples of devices that utilize this mechanism.
  • A participant asks about methods to raise or lower the force exerted by a magnet, seeking proper techniques for adjustment.
  • There are questions regarding the possibility of increasing the range of force of magnets, particularly in applications like speakers, with some suggesting that increasing magnetism could be achieved with electromagnets.
  • One participant remarks that if increasing the range of force were both easy and necessary, it would have already been accomplished, indicating that the method would depend on specific goals.

Areas of Agreement / Disagreement

Participants express varying interpretations of the original question, leading to multiple competing views on the methods and feasibility of controlling magnetic forces. The discussion remains unresolved regarding the best approaches and technologies available.

Contextual Notes

Participants have not reached consensus on the definitions of terms like "remote control" in relation to magnets, nor on the specific applications or technologies that might be employed to achieve the desired control over magnetic forces.

ChBhHu
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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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