Assertion: external magnetic field | /r/HasProperty | applied to the material
Facets:
Source sentences:
text: Before an external magnetic field is applied to the material, the domains' magnetic fields are oriented in random directions, effectively cancelling each other out, so the net external magnetic field is negligibly small.
text: When an external magnetic field is applied to a material, these current loops tend to align in such a way as to oppose the applied field.
text: If a strong enough external magnetic field is applied to the material, the domain walls will move by the process of the spins of the electrons in atoms near the wall in one domain turning under the influence of the external field to face in the same direction as the electrons in the other domain, thus reorienting the domains so more of the dipoles are aligned with the external field.