It can, it just wouldn't be permiable.
Its called an electromagnet
A solenoid is an electromagnet An electromagnet is a solenoid with an iron core
The strength of electromagnet depends on the electric current flowing through the core because when the current is stopped, the core is no longer magnetized and the rate of change of flux linkage.
This causes the power of the electromagnet to be increased.
It can, it just wouldn't be permiable.
Electromagnets consist of wire coiled around a core. The core can be anything from air to a nail or even a pencil. Since electrons flow freely through a conductive core (like a nail), an electromagnet made with a metal core will have a larger magnetic field (and thus be stronger) than an electromagnet with a wooden core. The strength of an electromagnet is related to the number of times the wire is coiled around the core and the distance the wire covers across the core. The more coils wrapped closer together, the stronger an electromagnet will be. The amount of voltage running through the wire also plays a role in an electromagnet's strength. More voltage means more electrons moving through the wire and thus a stronger magnet.
You have to change the core
Its called an electromagnet
An electromagnet requires only two parts, a core of ferro-magnetic material and wires winding around it. The wires magnetize the core when current flows through them, and the core then creates the magnetic field which the electromagnet is intended to produce.
If the electromagnet has a core, which has become magnetized, then the core will have a residual magnetic field when the power is removed.
A ferrous core.
a part of the earths structure causes it to act like an electromagnet
No, the electromagnet is not made weaker by making the core larger. It can be made weaker by decreasing its current and/or turns of coil.
A solenoid is an electromagnet An electromagnet is a solenoid with an iron core
no
A core