Key Idea.
Section 1
Defining the System
To track energy accurately, scientists define a system. For magnetism, the system includes the magnets and the magnetic field between them.
Crucially, potential energy is not stored inside the solid magnet (like a battery); it is stored in the magnetic field created by the interaction of the poles. The arrangement of the magnets determines the energy state of the field.
Section 2
Moving Against the Force
Energy is added to the magnetic field when an external force acts against the natural magnetic force.
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Section 1
Defining the System
To track energy accurately, scientists define a system. For magnetism, the system includes the magnets and the magnetic field between them.
Crucially, potential energy is not stored inside the solid magnet (like a battery); it is stored in the magnetic field created by the interaction of the poles. The arrangement of the magnets determines the energy state of the field.
Section 2
Moving Against the Force
Energy is added to the magnetic field when an external force acts against the natural magnetic force.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter