Asked by t
A giant magnet moves above a debris pile with many pieces of iron buried in it. Which statement is correct about the energy stored in the magnetic field? (1 point)
Iron pieces accelerate away from the magnet, and the energy stored in the system increases.
Iron pieces accelerate away from the magnet, and the energy stored in the system decreases.
Iron pieces accelerate toward the magnet, and the energy stored in the system increases.
Iron pieces accelerate toward the magnet, and the energy stored in the system decreases.
All Answers 1
Answered by
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Iron pieces accelerate toward the magnet, and the energy stored in the system decreases.
Reason: ferromagnetic iron is attracted into regions of stronger magnetic field; moving the iron into the field lowers the magnetic-field energy (the lost field energy appears as kinetic energy of the pieces and heat if dissipated).
Reason: ferromagnetic iron is attracted into regions of stronger magnetic field; moving the iron into the field lowers the magnetic-field energy (the lost field energy appears as kinetic energy of the pieces and heat if dissipated).
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