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An electric current flowing in a wire creates a magnetic field around the wire. To concentrate the magnetic field of a wire, in an electromagnet the wire is wound into a coil, with many turns of wire lying side by side. The magnetic field of all the turns of wire passes through the center of the coil, creating a strong magnetic field there. A coil forming the shape of a straight tube (a helix) is called a solenoid; a solenoid that is bent into a donut shape so that the ends meet is called a toroid. Much stronger magnetic fields can be produced if a "core" of ferromagnetic material, such as soft iron, is placed inside the coil. The ferromagnetic core magnifies the magnetic field to thousands of times the strength of the field of the coil alone. This is called a iron-core electromagnet.
What else can I help you with?
Electromagnets are different then homemade electromagnets. How?
Industrial Electromagnets Use higher quality metals for the coil winding. Also the windings are of different design and there are more of them. The metals used for the conductor are also of better quality material and have greater voltage sent to them.
When are electromagnets used to increase or decrease the voltage of electric currents?
Electromagnets are never used to increase or decrease the voltage in a circuit. These magnets in conjunction with a rotating device (an armature) can create a voltage but the do not have any effect on a voltage.
Which country is using the abacus?
"Answer"The abacus was created 3000Bc ago by the chinese.
Are there electromagnets in cars?
Alternators, HVAC blower motors, power windows, EGR valves (if not vacuum operated) and well I'll think of more
How did arceus create Pokemon?
It doesn't say how, but I think it creates Pokemon using its 'God' powers.
What is one advantage of using electromagnets instead of permanent magnets?
One advantage of using electromagnets is that their magnetic field can be easily controlled by varying the electric current, offering more flexibility and versatility in applications.
Are electromagnets always a coil?
No, electromagnets do not always have to be in the form of a coil. Electromagnets can be made using different shapes and configurations of conductive materials to generate a magnetic field when an electric current passes through them.
What are the differences between electromagnets and permanent magnets, and how do electromagnets differ from permanent magnets?
Electromagnets and permanent magnets differ in how they are created and their magnetic properties. Electromagnets are temporary magnets created by passing an electric current through a coil of wire, while permanent magnets are naturally occurring magnets with a fixed magnetic field. Electromagnets can be turned on and off by controlling the electric current, while permanent magnets always have a magnetic field.
Which of the following statement about electromagnets is true?
Electromagnets are temporary magnets that are created when electric current flows through a wire coil. The strength of an electromagnet can be increased by increasing the number of turns in the wire coil, increasing the current flowing through the coil, or by using a ferromagnetic core material.
Can increase the strength of an electromagnets field by?
using a stronger ferromagnetic material for the core. :)
How are electromagnets used in auto mobiles?
the main example is the alternator. using electromagnets to create electricity for the creating of spark in the chamber, and all those niceties inside and outside your car.
What are the disadvantages of using electromagnets in scrap yards?
Some disadvantages of using electromagnets in scrap yards include the high energy consumption required to operate them, the need for a power source which may limit mobility, and potential maintenance costs associated with the electromagnet system. Additionally, electromagnetic interference from nearby equipment or structures can affect the efficiency of the electromagnets.
How can an electric motor be constructed without the use of magnets?
An electric motor can be constructed without the use of magnets by using electromagnets instead. Electromagnets are created by passing an electric current through a coil of wire, which generates a magnetic field. This magnetic field can then interact with other magnetic fields to produce motion in the motor.
What is the flow of electromagnets called?
Electromagnets
What are four types of electromagnets?
The four types of electromagnets include solenoid electromagnets, flat-faced electromagnets, cylindrical electromagnets, and horseshoe electromagnets. Each type has unique features and applications depending on their design and magnetic field strength.
How are electromagnets different from magnets?
You can turn electromagnets on and off.
Do electromagnets affect glue?
Electromagnets do not affect glue.
