Magnetism at the center of a bar magnet is ______?

CONCEPT:

• Phenomena of Magnetism: The force of attraction and repulsion exhibited due to magnetic forces on magnetic materials and charged particles and related phenomena are known as magnetism.
• Bar Magnet: A bar magnet is a rectangular piece of an object, made up of ferromagnetic substances that show permanent magnetic properties.
• Field Lines: Magnetic field lines represent the strength and direction of the magnetic field at a particular point.
  • The density of field lines represents the strength of the magnetic field.
  • The more the density, the more is the strength. 

EXPLANATION:

• The magnetic field at the center of a bar magnet is zero in ideal case.
  • The field lines near the center is parallel to the bar magnet.
  • The density of the field lines is maximum at the poles of the bar magnet and zero at the center which means that the magnitude of the magnetic field is small at the center.
• So, zero is the correct answer.

​Additional Information

Though zero is correct for ideal case, practically it may not be zero.