B Question about magnetizing and the First law of Thermodynamics

AI Thread Summary
The discussion explores the relationship between magnetization and the First Law of Thermodynamics, specifically regarding the energy involved in creating magnets with a pea placed between them. When two pieces of iron or cobalt are magnetized, the energy exerted on the pea during this process raises questions about where that energy originates. After the magnets are formed, the distance between them decreases, resulting in a reduction of electromagnetic field energy in the surrounding space. This energy is theorized to be utilized in compressing the pea. Ultimately, the conversation highlights the interplay between mechanical power used in magnetization and the energy dynamics involved.
Emeth
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If you make two magnets with a pea inbetween them so they squash the pea upon their creation where does the energy squashing the pea come from?
I've been learning a lot about life from Internet searches and I do hope this isn't too basic of a question for you gurus.
If I had two pieces of iron next to each other with a pea in-between and two pieces of cobalt with a pea in-between. Then I magnetized the four pieces of metal by brushing them with magnets so that the pea was pushed on by the created magnets. Could you use exactly the same mechanical power to make those magnets? If so would one pea have more energy exerted on it?
 
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Emeth said:
Summary:: If you make two magnets with a pea inbetween them so they squash the pea upon their creation where does the energy squashing the pea come from?
After the pea crash the two magnets are closer in distance so electromagnetic field energy in space is lessened. The pulled out energy was used to crash the pea.
 
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