Yes true. Even without the iron core as current passes through the coil then the coil would act as a magnetic shell. If the wire is wound in a helical form, then the device is known as solenoid. So with the current in the solenoid it would act as if a bar magnet. If iron core is introduced then the magnetic lines would be concentrated and hence an intense magnet could be produced. The pole of this system will be determined by using 'end rule'.
A coil of wire wrapped around a ferromagnetic (iron) core and connected to a DC source is an electromagnet.
This is called an electromagnet.
Electromagnet
When a current carrying coil of water is running, creating an electric field, it is called a solenoid.
That is called an electromagnet.
Is called an electro magnet.
Electromagnet perhaps?
electromagnet
A magnet consisting essentially of a coil of insulated wire wrapped around a soft iron core that is magnetized only when current flows through the wire.
a magnet
The supply to the field winding is derived through no voltage coil. So when field current flows, the NVC is magnetized. Now when the handle is in the 'RUN' position, soft iron piece connected to the handle and gets attracted by the magnetic force produced by NVC, because of flow of electric current through it.
electromagnet
electromagnet
Electromagnet perhaps?
This is called an elecro-magnet, and it is only magnetized while current is running through it.
When an electrical current flows through a wire it creates what is called an Electro Magnetic Field.A magnetic field is create when an electric current flows through a wire.
A magnet created when electric current flows through a coil of wire is called an electromagnet.
An electrical current.
"circuit"
electric current
Alternating current flows through a flat iron.
This good? the current flows through the battery and light?
It is not true that when electric current flows through a long conductor each electron moves through a relative short distance because electric current is the continues flow of electrons.