[" 13.The magnetic force required to "],[" demagnetize the material is "]

The magnetic force required to demagnetise the material is

The coercive force for a certain material is 10^4 A/m. A magnet made out of this material is placed inside a solenoid having 1000 turns/metre. What amount of electric current is required to demagnetise the material completely?

The magnetic susceptibility of a material is negative: The material is

Magnetic Materials

Magnetic force cannot pass through non-magnetic materials.

The space or region around a magnet in which a force is experienced by magnetic material is called

Magnetic force can pass through non-magnetic materials.