It creates a magnet and magnetism.
Coils of wire
Coils of wire
Yes, electric current does create magnetic fields
No, The magnet rotates/moves through the coil, inducing a current into the coil by disturbing the coils magnetic field. A transformer works the exact same way.
because the poles aren't defined. You create an electomagnet by coiling wire, and putting a piece of metal through it. Just the wire straight will cause magnetic field lines around the wire and as current goes up and down lines will move causing induction in neighbouring wires but that the extent of affect between wires. Without poles there is no opposite attract situation. The pole will constantly want to be ahead of the wire and the current will be constantly pushing it away. The metal defines poles plus directs the field lines.
a magnet
a magnet
It creates a magnet and magnetism.
Coils of wire
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.
An electromagnet.
This is a basic description of an electromagnet. Apply a voltage (direct current) to the coil, and a magnetic field will develop around the coil and be "conducted" through the iron core to create that electromagnet.
christo wrapped his artwork because he wants to create another intrepetation about inviromental art.
Sending electricity though a copper wire wrapped round an iron core will create an electro-magnet.
Move wires rapidly through the magnetic field so that they "cut" the field lines will create an electric current in the wires. This is the method used in alternators, generators, magnetos, and read heads on disk drives and tape recorders.
no. applying an electrical current to a coil wrapped around a magnet would create a force, which would move the magnet one way or another. to fully understand how to position coils and magnets to get the result you want, google the 'right hand thumb rule'
Coils of wire