Question

Which of the following statements are true about magnetic flux density?

• A. Magnetic flux density is the same throughout the length of the magnet
• B. Magnetic flux density is greater at the poles of the magnet
• C. Magnetic flux density doesn't depend on magnetic field lines
• D. Magnetic flux density depend on magnetic field lines

Answer 1

Answer: (B), (D)

The correct options are
B

Magnetic flux density is greater at the poles of the magnet

D

Magnetic flux density depend on magnetic field lines

The number of magnetic field lines passing perpendicular through a unit area is called magnetic flux density. Magnetic flux density depends on the number of filed lines and the area. Magnetic field lines are maximum near poles. Hence flux density will be greater near poles.