Electric motor and loud speakers are the two devices that uses current carrying conductor and magnetic field.
-- A current flowing through a conductor creates a magnetic field around the conductor. -- Moving a conductor through a constant magnetic field creates a current in the conductor. -- If there's a conductor sitting motionless in a magnetic field, a current flows in the conductor whenever the strength or direction of the magnetic field changes.
A changing magnetic field induces an electric current in a conductor.
When a current-carrying conductor is placed in a magnetic field, a force is exerted on the conductor due to the interaction between the magnetic field and the current. This force is known as the magnetic Lorentz force and its direction is perpendicular to both the magnetic field and the current flow. The magnitude of the force depends on the strength of the magnetic field, the current flowing through the conductor, and the length of the conductor exposed to the magnetic field.
A static magnetic field can exist in a good conductor. When the conductor carries current, it produces the flux which can exist inside the conductor. Due to this flux, magnetic field and intensity at a point inside the good conductor.
A changing magnetic field A conductor or coil of wire Movement between the magnetic field and the conductor (relative motion)
When electrons move through a conductor, they create a flow of electrical current. This flow of current generates a magnetic field around the conductor in accordance with Ampere's law. The strength of the magnetic field is directly related to the magnitude of the current and the distance from the conductor.
magnetic force
When a direct current (DC) flows through a conductor, it generates a magnetic field around the conductor. This phenomenon is described by Ampere's law, which states that a magnetic field is produced around a current-carrying conductor. The strength of the magnetic field is directly proportional to the current flowing through the conductor.
The force experienced by a current-carrying conductor in a magnetic field is strongest when the current and magnetic field are perpendicular to each other, maximizing the force according to the right-hand rule.
When the conductor,magnetic field and motion are perpendicular to each other
The force on current carrying conductor kept in a magnetic field is given by the expression F = B I L sin@ So the force becomes zero when the current carrying conductor is kept parallel to the magnetic field direction and becomes maximum when the current direction is normal to the magnetic field direction. Ok now why does a force exist on the current carrying conductor? As current flows through a conductor magnetic lines are formed aroung the conductor. This magnetic field gets interaction with the external field and so a force comes into the scene.
Moving a conductor through a magnetic field will produce alternatinc current (AC).