A magnetic material such as iron can change the course of magnetic lines of force.

More Questions from Magnetism and Electromagnetism

• The unit of magnetic flux density is the weber.
• The Hall voltage is the voltage created by a conductor moving through a magnetic field.
• The ability of a material to maintain a magnetized state (without the presence of a magnetizing force) is called retentivity.
• A magnetic field is produced around a current-carrying conductor.
• Ferromagnetic materials have pre-existing magnetic fields.
• The induced voltage across a stationary conductor in a stationary magnetic field ___.
• After the magnetizing force has been removed, the ratio of the remaining magnetic flux to the saturated magnetic flux is called _____________.
• The movable part in a relay is the _____.
• A group of force lines going from the north pole to the south pole of a magnet is called the magnetic ___.
• The ___ is an electromagnetic device that contains a coil rotating on a jeweled bearing mount.

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