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What is the A magnet that has coils of ccurrent-carrying wire around an iron core?
Wiki User
∙ 7y ago
The current produces the magnetic field; such a magnet is called an electromagnet.
Wiki User
∙ 7y ago
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What happens inside a scrap heap magnet?
Scrap heap magnets are basically electromagnets. Electromagnets are simply wire coils usually would around an iron core. When connected to a DC voltage or current source, the electromagnet becomes energized, creating a magnetic field just like a permanent magnet. The magnetic flux density is proportional to the magnitude of the current flowing in the wire of the electromagnet.
How do you know that is not a huge permanent magnet earths core?
1.because earth acts like a bar magnet and we had imagined that there is a magnet in earths core
Can copper wire be made into a magnet?
The copper wire has to be wound around a iron core to get the full effect of electromagnetism.
Does electricity flow through iron?
Electromagnets are magnets that are powered by electric currents. An electromagnet is usually more powerful than a permanent magnet that does not use electricity because the strength of an electromagnet can be increased by adding additional material, such as more wire or a bigger core, and the magnetic field can be concentrated using wire coils around the core. i hope this did help
How does the section of iron coil influence the magnetic field?
Do you maybe mean an 'iron core?' If so, an iron core strenghthens the magnetic field significantly. *If the coils are wound closer together the fluxlines are more dense and increase the strength of the field slightly (an iron core strengthens the field by allowing the magnetic field to propagate inside it better than air).
What is the name of a magnet that has coils of wire carrying current wrapped around an iron core?
"Electromagnet"
What type of material is used for making temporary magnet?
An electo-magnet has an iron core wrapped round with wire coils. When electricity is passed through the coils, the iron core become magnetised, until the electricity is switched off.
How can you turn a piece of iron into a magnet?
To turn a piece of iron into a temporary magnet, wind a coil of (insulated) copper wire around it and run a DC current through the wire. The iron will become the core an electromagnet -- the one you just constructed. As long as direct current flows through the coil, the iron core will attract ferromagnetic materials.jkghyjy Wrap many coils of lacquered copper wire round an iron nail. When electricity is sent through the coils, the nail becomes magnetised. The iron is an electromagnet as long as the power is on. When a piece of iron is brought near the magnet it also becomes a temporary magnet.
Coils of wire wrapped around a ferromagnetic core make up a motor's?
Coils of wire wrapped around a ferromagnetic core make up a motor's armature. It carries an electrical current and rotates within a magnetic field.
When a current carrying wire is wrapped around an iron core what can it create?
a magnet
When a current -carrying wire wrapped around an iron core what can it create?
a magnet
If you pass a magnet through a coil of wire you get a pulse you get some amp out of it so to get more current what is more important the speed of the magnet or the amount of wire?
You get more voltage with higher speed and more amperage with more turns of wire. Also by adding more coils of wire carrying current around the iron core
What is the definition of a core in electrical equipment?
A core in the electrical trade usually refers to the iron laminations that coils of wire are wrapped around. The core directs the magnetic field, that the coils of wire produce when energized, into a working force. This could be the iron core of a relay or a transformer core that is the centre and principle reason that a transformer can operate.
How can an electromagnet be made stronger?
An electromagnet can be made stronger by: - A bigger iron rod. - A bigger battery/more batteries - More coils around the iron rod. - A bigger magnet. - Increase the current flowing through the coil. - Put in a soft iron core.
How an electromagnet be made stronger?
An electromagnet can be made stronger by: - A bigger iron rod. - A bigger battery/more batteries - More coils around the iron rod. - A bigger magnet. - Increase the current flowing through the coil. - Put in a soft iron core.
What happens inside a scrap heap magnet?
Scrap heap magnets are basically electromagnets. Electromagnets are simply wire coils usually would around an iron core. When connected to a DC voltage or current source, the electromagnet becomes energized, creating a magnetic field just like a permanent magnet. The magnetic flux density is proportional to the magnitude of the current flowing in the wire of the electromagnet.
Why are hard magnetic materials used to make electromagnets?
Hard in this sense means materials that are themselves not easily magnetised. In fact, the part that you are referring to isn't really the magnet - it is the core, the magnetic field is produced by the coil, the core just concentrates the field. In an electro-magnet, the core must retain little or no field when the coils are not excited/energised. This means that items picked-up/attracted by the electro-magnet are no longer attracted when the coil is denergised - you can unload/drop the load from your crane or hoist by switching off the electro-magnet.
