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A refrigerator magnet is magnetic because it is a "permanent" magnet. An electromagnet is a magnetic field caused by a current flowing through a wire.
A solenoid is an electromagnet An electromagnet is a solenoid with an iron core
a bar magnet...
Magnetic poles
magnetic
a permanent magnet is always magnetic as an electromagnet is only magnetic when it is wound around with wire and energised
a magnetic field
No. Only when an electric charge is put through the electromagnet.
An electromagnet is a magnet that only generates magnetic forces when electricity is running through it, basically a magnet that can be turned on and off. An electromagnetic field is the magnetic force generated when an electromagnet is used.
If the electromagnet has a core, which has become magnetized, then the core will have a residual magnetic field when the power is removed.
When you decrease the current in an electromagnet, the magnetic field decreases.
A magnetic field.
No. Venus has no magnetic field.
Electro Magnetic is correct
A refrigerator magnet is magnetic because it is a "permanent" magnet. An electromagnet is a magnetic field caused by a current flowing through a wire.
A solenoid is an electromagnet An electromagnet is a solenoid with an iron core
Both are magnetic.