Which statement about the static magnetic field is true?

The statement regarding the static magnetic field is accurate because it addresses the concept of torque, which refers to the rotational force exerted on ferrous (iron-containing) objects when they are exposed to the magnetic field generated by an MRI scanner. Ferrous objects can become magnetized and may experience a force that causes them to align with the magnetic flux lines of the static magnetic field, leading to potential movement or rotation. This interaction can pose safety risks in the MRI environment, as these objects may become projectiles if they are not secured appropriately.

Understanding this principle is essential for ensuring patient and staff safety within the MRI suite. Proper protocols must be in place to manage and control the movement of ferromagnetic materials near the MRI machine to prevent injury or equipment damage. The other statements do not accurately reflect the nature of the static magnetic field or its effects, thereby highlighting the importance of recognizing the correct dynamics at play in the MRI environment.