Sifat dan Kinerja Mat P2 Fundamentals of Magnetic Properties

What is the SI unit of magnetic flux density (B)?

• Ampere per meter

• Tesla

• Henry

• Weber

What is the physical constant representing vacuum permeability (μ₀)?

• 1.60 × 10⁻¹⁹ C

• 9.81 m/s²

• 4π × 10⁻⁷ H/m

• 3.00 × 10⁸ m/s

Which parameter measures how easily a material becomes magnetized in response to a magnetic field?

• Permeability

• Magnetic Susceptibility (χₘ)

• Magnetic Flux

• Magnetic Field Intensity

The unit of magnetization (M) in SI is:

• A·m

• A/m

• Wb/m²

• T·m

What is the smallest unit of magnetic moment called?

• Planck's Constant

• Maxwell

• Bohr Magneton

• Coulomb

Which of the following quantities has no unit (dimensionless)?

• Magnetic Permeability

• Magnetic Susceptibility

• Magnetic Flux Density

• Magnetization

Which of the following materials is likely to have a relative permeability much greater than 1 (μᵣ ≫ 1)?

• Air

• Copper

• Iron

• Water

Which formula relates magnetic flux density (B), field strength (H), and permeability (μ)?

• B = μ₀M

• B = μH

• B = M/H

• B = H/μ

Why does a material with higher permeability allow more magnetic flux?

• It has fewer electrons

• It blocks external fields

• It aligns internal dipoles more easily

• It conducts electricity better

What is the primary difference between magnetic field strength (H) and magnetic flux density (B)?

• H is the result; B is the cause

• H is due to the material, B is the field

• H is the cause; B is the result

• They are identical in all media