A conductor supplied with current in a magnetic field will:

A conductor supplied with current placed within a magnetic field will tend to move at right angles to the magnetic flux lines due to the interaction of the magnetic field with the electric current flowing through the conductor. This phenomenon is described by the Lorentz force law, which states that a charged particle moving through a magnetic field experiences a force perpendicular to both the direction of the magnetic field and the direction of the current.

When current flows through the conductor, it creates a magnetic field around it. The interaction between the magnetic field created by the current and the external magnetic field results in a force that causes the conductor to move. The right-hand rule is often used to visualize this: if you point your thumb in the direction of the current and your fingers in the direction of the magnetic field, your palm will indicate the direction of the force acting on the conductor. This force acting at right angles ultimately results in the conductor's movement being at right angles to the magnetic flux lines.

This principle is foundational in the operation of electric motors and various electromagnetic devices, where the movement generated by this interaction is harnessed to perform work.