The attraction capacity of electromagnet will increase if the
Correct answer: D. Flux density increases
- A. Core length increases
- B. Core area increases
- C. Flux density decreases
- D. Flux density increases
Explanation
Flux density represents the number of magnetic field lines passing through a cross section. More field lines passing means a greater magnetic field will be produced. A stronger magnetic capacity therefore means that more magnetic field lines are passing through a surface.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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