A ferromagnetic material becomes strongly magnetic when its domains are:
AElectrically charged
BAligned together
CRandomly scattered
DCompletely removed
Answer & Solution
Correct answer: B. Aligned together
1. Domains are themselves magnets, so their arrangement matters.
2. Ferromagnetic materials contain magnetic domains that are themselves magnets.
3. The regions within the material called domains act like small bar magnets.
4. Randomly oriented domains cancel one another out.
5. Aligning them makes their fields add, so the material is strongly magnetic.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 22 'Magnetism', sections 22.1-22.11_
Related questions
All magnetic effects are explained using currents rather than poles because monopoles are:A charge moving parallel to a magnetic field experiences a magnetic force that is:Cutting a bar magnet in half produces two magnets rather than two monopoles because:The similarity noted between magnetic poles and electric charges is that unlike ones:A solenoid is described as a long coil of wire with:The magnitude of the magnetic force on a moving charge depends on the angle between the fiThe magnetic force on a charge moving in a magnetic field is often called the:Earth's south-seeking magnetic pole lies near which geographic location?