ELE412 - Long Quiz

• Which of the following is a key consideration when selecting a core material for an inductor?

• High permeability

• Low saturation flux density

• High resistivity

• Low hysteresis loss

What is the objective of designing an inductor according to the document?

• To minimize copper loss

• To carry the worst-case current without saturating

• To maximize the air gap length

• To reduce the core size

What does the window utilization factor ( Ku ) represent?

• The fraction of the core window area filled by copper

• The total area of copper in the window

• The resistance of the winding

• The inductance of the core

What does the core geometrical constant ( Kg ) describe?

• The effective electrical size of magnetic cores

• The maximum flux density of the core

• The copper loss in the winding

• The air gap length

Which type of inductor core is commonly used for high-frequency applications?

• E-core

• Toroidal core

• U-core

• Pot core

What is the purpose of interleaving the winding layers in an inductor?

• To reduce the overall inductance

• To increase the overall inductance

• To minimize the skin effect

• To improve thermal performance

Which factor contributes to the parasitic capacitance of an inductor?

• Core material

• Winding resistance

• Air gap

• Insulation material

How does the saturation current of an inductor affect its performance?

• Higher saturation current allows for higher peak current handling

• Lower saturation current reduces core losses

• Saturation current has no impact on inductor performance

• Saturation current affects winding resistance

What causes temperature rise in an inductor during operation?

• Core material

• Copper loss

• Air gap

• Winding resistance

Which of the following factors contributes to core losses in an inductor?

• Hysteresis

• Winding resistance

• Air gap

• None of these