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What happens when the wire in an electromagnet is wrapped around a soft iron core?
Wiki User
∙ 11y ago
A coil of wire or a coil in the shape of a cylinder is a typical shape for an electromagnet. The strength of the magnetic field of an electromagnet can be increased significantly if the coil is wrapped around an iron core. This does not happen with nonmagnetic materials such as wood or aluminum or rubber.
The enhancement of the electromagnet is caused by the magnetic properties of iron. The atoms of iron have magnetic properties as a consequence of thier electronic structure. (The cause of magnetism at the atomic level is a complex issue if described in detail and that complexity is beyond this explanation.) In a simplified picture one can say that at the atomic level the iron atoms act like little magnets.
The magnetic characteristics of iron are such that an external magnetic field causes the rearrangement of the electronic structure of the iron at the atomic level and that creates a magnetization in the iron. That magnetizations has its own magnetic field just like a normal permanent magnet. The field created by the magnetization of the material adds to the external field and one gets a stronger magnetic field in and around the iron core.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoA coil of (insulated) wire around a soft iron core forms an electromagnet if a DC voltage is applied and current is passed through the wire.
Wiki User
∙ 12y agoAn electromagnet when an electric current is applied.
Wiki User
∙ 12y agoWhen a core is placed in the middle of the coil, the electromagnetism power of the coil will increase because the iron core is highly permeable.
Wiki User
∙ 12y agoinduced emf is produced in it...
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What is produced when a coil of wire is wrapped around an iron core?
electromagnet
What is the effect of increasing the number of coils of wire wrapped around the core of an electromagnet?
This causes the power of the electromagnet to be increased.
What is the effect of increasing the number of coil of wire wrapped around the core of an electromagnet?
This causes the power of the electromagnet to be increased.
An electromagnet would have the greatest strength if its wire were wrapped around a core made of what?
iron
Produced by a coil of current-carrying wire wrapped around an iron core?
It makes an electromagnet.
A coil of wires wrapped around a core?
A coil of wires wrapped around a core is an electromagnet.
What is produced when a coil of wire is wrapped around an iron core?
electromagnet
What is the effect of increasing the number of coils of wire wrapped around the core of an electromagnet?
This causes the power of the electromagnet to be increased.
What is the effect of increasing the number of coil of wire wrapped around the core of an electromagnet?
This causes the power of the electromagnet to be increased.
An electromagnet would have the greatest strength if its wire were wrapped around a core made of what?
iron
Produced by a coil of current-carrying wire wrapped around an iron core?
It makes an electromagnet.
What is the name of a magnet that has coils of wire carrying current wrapped around an iron core?
"Electromagnet"
What has a wire-wrapped core?
A coil of wire or a coil in the shape of a cylinder is a typical shape for an electromagnet (or a solenoid). The strength of the magnetic field of an electromagnet can be increased significantly if the coil is wrapped around an iron core. This configuration may be called an inductor when used as an element of an electrical circuit.
Does the strength of an electromagnet depend on the number of volts passing through the wire or the number of coils of wire wrapped around the iron core?
The strength of an electromagnet depends on: -- The magnitude of the current through the wire. (This depends on the voltage between the ends of the wire.) -- The number of turns of wire in the coil wrapped around the iron core.
A coil of wire with an electric current in it?
A solenoid. An electromagnet is wire wrapped around a core of iron (usually). The wrapped wire itself is called the solenoid.
A device formed from an iron core wrapped in current-carrying wire is?
That can be a 'solenoid' or an 'electromagnet'.
How is a magnetic force in an electromagnet created?
An electromagnet uses electricity to create the magnetic field. Moving charges create magnetic fields. Knowing that, if we have a lot of copper wire (with a suitable insulator) wrapped around an iron core, we can send direct current through that wire, and it will create a magnetic field. The magnetic field will magnetize the iron core, and the core becomes a magnet. Wrapping wire around a nail and connecting a battery to the ends of the wire will make a simple electromagnet.
