Faraday's Law states that magnetic fields produce a electric fields and vice versa. Also, Ampere's Law states that a change in magnetic fields w.r.t. time creates current.
Current-carrying wires produce magnetic fields.
Magnets in speakers create a magnetic field that interacts with an electrical current, causing the speaker cone to move back and forth. This movement creates sound waves that we hear as sound.
Magnets can be used to create electricity through a process called electromagnetic induction. When a magnet moves near a coil of wire, it creates a changing magnetic field which induces an electric current in the wire. This current can then be harnessed as electricity. This principle is used in devices like generators to produce electricity from the movement of magnets.
A device that uses magnets and coils of wire to produce electricity is called a generator. The movement of the magnets past the coils induces an electrical current through electromagnetic induction. Generators are commonly used in power plants to generate electricity for various applications.
Electric motors rely on magnets for movement. They have both stationary magnets and rotating electromagnets that interact to produce motion. Additionally, maglev trains use magnets to levitate above the tracks and move without friction.
A current-carrying wire produces a magnetic field around it. This magnetic field strength is directly proportional to the amount of current flowing through the wire.
Electromagnets are temporary magnets that produce a magnetic field when an electric current flows through them, while permanent magnets retain their magnetism without the need for an external electric current. Electromagnets allow for the control of the magnetic field strength by changing the current, while permanent magnets have a fixed magnetic strength.
Magnets create a magnetic field without the need for electricity. However, magnets and electricity are related as moving electrical charges (current) can produce a magnetic field, and vice versa (electromagnetism).
Magnets can be used in generators to produce electricity by rotating a coil of wire in a magnetic field, which induces an electric current in the wire. Magnets can also be used in electromagnetic induction, where moving a magnet near a conductor creates a changing magnetic field, inducing an electric current in the conductor.
A current-carrying wire does produce a magnetic field around it according to Ampere's law, which states that a current generates a magnetic field. This phenomenon is the basis for the operation of electromagnets and the magnetic field produced is directly proportional the current flowing through the wire.
If a conductor moves in a magnetic field, a voltage will be induced. This can be tapped to get an electrical current.
"electro magnets" are magnetic ONLY when electricity travels through a coil of wire surrounding them. "Magnets", as you state it, are permanent magnets and remain so independent of and not dependent upon any additional electrical charge.