What happens when a permanent magnet is wound with a copper wire

In summary, when a permanent magnet is wound with a copper wire (inductor) and connected to some voltage, the magnetic flux of the permanent magnet can either increase or decrease, depending on the direction and strength of the current. The effect on the permanent magnet's natural magnetism will vary based on the magnetic hardness of the material and the strength of the current.
  • #1
270000
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what happens when a permanent magnet is wound with a copper wire (inductor) and the inductor is connected to some volatge? Will the magnetic flux of the permanent magnet increase (i.e., make the permanent magnet more strong)?
 
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  • #2
270000 said:
what happens when a permanent magnet is wound with a copper wire (inductor) and the inductor is connected to some volatge? Will the magnetic flux of the permanent magnet increase (i.e., make the permanent magnet more strong)?

Depends on which way the current is flowing. It can add or subtract. I don't know what the effect is on permanent magnets thought. It might destroy their natural magnetism.
 
  • #3
270000 said:
what happens when a permanent magnet is wound with a copper wire (inductor) and the inductor is connected to some volatge? Will the magnetic flux of the permanent magnet increase (i.e., make the permanent magnet more strong)?

It will increase or decrease, as was said, but by how much depends on the magnetic hardness of the material, its hysteresis curve, and the current. If the material is very hard, and the current is weak, the change will be very small.
 

1. What is the purpose of winding a permanent magnet with a copper wire?

The purpose of winding a permanent magnet with a copper wire is to create an electromagnet. When an electric current passes through the copper wire, it creates a magnetic field that interacts with the permanent magnet, producing a stronger magnetic field.

2. How does the number of windings affect the strength of the electromagnet?

The number of windings directly affects the strength of the electromagnet. The more windings there are, the stronger the magnetic field will be. This is because each turn of the wire adds to the overall magnetic field created.

3. Can the direction of the current affect the magnetic field of the electromagnet?

Yes, the direction of the current can affect the magnetic field of the electromagnet. The direction of the magnetic field is determined by the direction of the current flow in the wire. Reversing the direction of the current will also reverse the direction of the magnetic field.

4. What happens if the copper wire used for winding is too thin or too thick?

If the copper wire used for winding is too thin, it may not be able to carry enough current to create a strong magnetic field. On the other hand, if the wire is too thick, it may be difficult to wrap around the magnet and may not fit in the available space. It is important to use the appropriate thickness of wire for the desired strength and size of the electromagnet.

5. Can an electromagnet be turned on and off?

Yes, an electromagnet can be turned on and off by controlling the flow of current through the copper wire. When the current is flowing, the electromagnet is on and producing a magnetic field. When the current is turned off, the electromagnet is off and the magnetic field disappears. This feature makes electromagnets useful for a variety of applications.

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