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Magnetic fields are produced by: (select all that apply) 1) the magnetic permeability of vacuum 2) the "spin" property of some fundamental particles 3) moving electric charges 4) large electric fields

User Nsg
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Final answer:

Magnetic fields are generated by moving charges or changing electric fields. Ampere's law is an equation that describes this phenomenon. Therefore, options 2 and 3 are correct.

Step-by-step explanation:

Magnetic fields are produced by:

1) the magnetic permeability of vacuum

- This is not correct. The magnetic permeability of vacuum, denoted as μ₀, is a constant that relates the magnetic field to the magnetization in a vacuum. However, it does not produce magnetic fields.

2) the "spin" property of some fundamental particles

- Correct. The spin property of fundamental particles, such as electrons, contributes to the generation of magnetic fields.

3) moving electric charges

- Correct. According to Ampère's Law, the flow of electric current (i.e., moving electric charges) generates a magnetic field.

4) large electric fields

- This is not correct. While changing electric fields can induce magnetic fields (according to Maxwell's equations), large electric fields alone do not produce magnetic fields.

Therefore, options 2 and 3 are correct.

User Sunseeker
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