Reluctance
Permeability
Permeance
Retentivity E. There is no valid comparison
Answer is Right!
Answer is Wrong!
The correct answer is A. Reluctance.
Reluctance is the opposition to the flow of magnetic flux in a magnetic circuit. It is analogous to resistance in an electrical circuit. The lower the reluctance, the easier it is for magnetic flux to flow.
Permeability is a measure of how easily a material can be magnetized. It is a
property of the material itself, and it does not depend on the shape or size of the material.Permeance is the product of permeability and cross-sectional area. It is a measure of how much magnetic flux can be produced in a material.
Retentivity is the ability of a material to retain its magnetism after the magnetizing force has been removed.
There is no valid comparison between reluctance and the other options.