Question

in the english system of measure, magnetic strength is measured in terms of ______.
a. flux density
b. reluctance
c. residual magnetism
d. permeability

Explanation:

Identify the core question

Using the English System of Magnetic Units knowledge point

The question asks for the term used to measure magnetic strength in the English system of measure.

Analyze the options

Using the English System of Magnetic Units knowledge point

• Flux density: In the English system, magnetic strength (or magnetic field intensity/density) is measured in terms of lines of force per square inch, which represents flux density.
• Reluctance: This is the opposition to magnetic flux, analogous to electrical resistance.
• Residual magnetism: This is the magnetization left behind in a ferromagnetic material after an external magnetic field is removed.
• Permeability: This is a measure of the ability of a material to support the formation of a magnetic field within itself.

Therefore, magnetic strength in the English system is measured in terms of flux density (lines per square inch).

Answer:

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