The ratio of magnetic flux density in a substance to the magnetizing force which produces it

The magnetic field created by a conductor wound on a laminated core and carrying any electric current

The ratio of magnetic flux density in a substance to the magnetizing force which produces it

Polarized molecular alignment in a ferromagnetic material while under the influence of a magnetizing force

Permeability is:

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🔍 Key Concepts

• Permeability in magnetism (how easily a material supports the formation of a magnetic field within itself) • Difference between flux density (B), magnetizing force (H), and magnetization (alignment of domains) • Distinguishing a definition of a fundamental property from descriptions of physical setups (like coils and laminated cores)

💭 Think About

• Look for the choice that gives a general property of magnetic materials, not a specific example or device setup • Ask yourself: which option could be written as a concise line in a physics glossary for permeability? • Check whether permeability involves an equation relationship between quantities like B and H, or whether it is about how the molecules line up under a field

✅ Before You Answer

• Identify which choice (if any) expresses permeability as a ratio or proportional relationship between magnetic quantities • Separate cause/effect descriptions (what happens when you apply a field) from the parameter that characterizes the material • Ensure you are not confusing magnetic circuit components (like laminated cores and coils) with the intrinsic property called permeability

🔍 Key Concepts

💭 Think About

✅ Before You Answer