Question

in the english system, the total force producing a magnetic field is the ______.
a. magnetomotive force
b. flux density
c. reluctance
d. permeability

Explanation:

Identify the core question

The question asks for the term that represents the total force producing a magnetic field in the English system of units.

Analyze the given options

Using the Magnetomotive Force and English System of Magnetic Units knowledge points

• Magnetomotive force (MMF) is the total force or pressure that produces magnetic flux in a magnetic circuit, measured in ampere-turns in both the SI and English systems.
• Flux density is the amount of magnetic flux per unit area.
• Reluctance is the opposition to the passage of magnetic flux.
• Permeability is the measure of the ability of a material to support the formation of a magnetic field.

Determine the correct choice

The total force producing a magnetic field is defined as the magnetomotive force. Therefore, option (a) is correct.

Answer:

• a. magnetomotive force (Correct answer)
• b. flux density
• c. reluctance
• d. permeability