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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.

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Q: Coils of wire wrapped around a ferromagnetic core make up a motor's?
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Related questions

What was wrapped around an iron bar to create the first electromagnet?

Coils of wire


What is the name of a magnet that has coils of wire carrying current wrapped around an iron core?

"Electromagnet"


Which device consists of two separate coils of wire wrapped around an iron ring?

A transformer.


What device consists of two separate coils of wire wrapped around an iron ring?

An electrical transformer.


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.


Why do some high tension wires have spiral coils at intermitant periods along their length?

I believe what you are referring to is coils wrapped around power lines; I believe these are for damping purposes (to keep the wires from bouncing around).


What has magnets and coils of copper wire?

Some DC motors.


What was wrapped an iron bar to create the first electromagnet?

Coils of wire


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.


Is it dangerous to coil a live wire?

It can be if it is wrapped up real tight. You are making a coil and coils produce resistance, and heat.


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.


Why do door motors get burned?

All motors are made up of 2 basic parts, a coil or coils of wire, and two or more magnets. the motors found in cars and car windows contain dc motors that use a pair of brushes to make contact with the coils that in turn drive the magnet. as u continually use the motor, the brushes are worn away due to friction, once the brushs no longer make contact with the commutator (the copper plates where the brushes come in contact with the coils) the door motor with stop working as no current is able to pass through the motor. you either have to get the brushes replaced, or replace the motor entirely