The electromagnet is positioned in a constant magnetic field created by a permanent magnet. These two magnets -- the electromagnet and the permanent magnet -- interact with each other as any two magnets do. The positive end of the electromagnet is attracted to the negative pole of the permanent magnetic field, and the negative pole of the electromagnet is repelled by the permanent magnet's negative pole. When the electromagnet's polar orientation switches, so does the direction of repulsion and attraction. In this way, the alternating current constantly reverses the magnetic forces between the voice coil and the permanent magnet. This pushes the coil back and forth rapidly, like a piston.
No, they are attracted to: Other permanent magnets Solenoids Iron Wires with current running through them
Permanent magnets aren't bad. period. I do not know where you heard that but whatevs..
Permanent magnets can be purchased from sites such as Magnet Sales and PML India. A permanent magnet is more resistant to factors that would demagnetise it than regular magnets.
Permanent magnets are bar magnets or horse shoe magnets which has magnetism at all times. But non permanent also known as temporary magnets are usually electromagnets which would have magnetism only when current flows through the coil that surrounds it.
They can be demagnetized. Because nothing can be permanent :-)
False
permanent magnets
Permanent magnets contain a current-carrying wire.
No, they are attracted to: Other permanent magnets Solenoids Iron Wires with current running through them
No, electromagnets are not permanent.
Permanent magnets aren't bad. period. I do not know where you heard that but whatevs..
Permanent magnets can be purchased from sites such as Magnet Sales and PML India. A permanent magnet is more resistant to factors that would demagnetise it than regular magnets.
Permanent magnets are bar magnets or horse shoe magnets which has magnetism at all times. But non permanent also known as temporary magnets are usually electromagnets which would have magnetism only when current flows through the coil that surrounds it.
permanent magnets
A permanent magnet can affect magnets and electromagnets.
They can be demagnetized. Because nothing can be permanent :-)
Yes Permanent magnets is the term used to describe magnets that are always magnetic, an non permanent magnet would be an electro magnet which is only a magnet when an electric current is put through it.