Question

the measure of a materials resistance to magnetism is known as ______.
a. reluctance
b. saturation
c. residual magnetism
d. permeability

Explanation:

Define resistance to magnetic flux

Using the Magnetic Reluctance knowledge point

• Reluctance is the opposition that a material offers to the passage of magnetic flux.
• It is analogous to electrical resistance in an electric circuit.

Analyze the given options

• a. reluctance: The measure of opposition (resistance) to magnetic flux.
• b. saturation: The state reached when an increase in external magnetic field cannot increase the magnetization of the material further.
• c. residual magnetism: The magnetization left behind in a ferromagnetic material after an external magnetic field is removed.
• d. permeability: The measure of the ability of a material to support the formation of a magnetic field within itself (the inverse of reluctance).

Answer:

• a. reluctance (Correct answer)
• b. saturation
• c. residual magnetism
• d. permeability