All Flashcards
Compare ferromagnetic and paramagnetic materials.
Ferromagnetic: Can be permanently magnetized, strong interaction. Paramagnetic: Weakly attracted, temporary alignment.
Compare paramagnetic and diamagnetic materials.
Paramagnetic: Weakly attracted, dipoles align temporarily. Diamagnetic: Weakly repelled, dipoles align opposite to field.
Compare ferromagnetic and diamagnetic materials.
Ferromagnetic: Strongly attracted, can be permanently magnetized. Diamagnetic: Weakly repelled.
Differentiate between magnetic monopoles and dipoles.
Monopoles: Theoretical, single north or south pole. Dipoles: Real, always have both north and south poles.
Compare the alignment of magnetic domains in ferromagnetic, paramagnetic, and diamagnetic materials in the presence of an external magnetic field.
Ferromagnetic: Domains strongly align and remain aligned. Paramagnetic: Domains weakly and temporarily align. Diamagnetic: Electron dipole moments align opposite to the field.
Define magnetic force (F).
The force experienced by a charged particle moving in a magnetic field, measured in Newtons (N).
Define charge (q).
A fundamental property of matter that can be positive or negative, measured in Coulombs (C).
Define velocity (v).
The rate of change of an object's position with respect to time, with a direction, measured in meters per second (m/s).
Define magnetic field strength (B).
A measure of the intensity of a magnetic field, measured in Tesla (T).
Define Permeability of free space ().
A physical constant that relates the magnetic field to the electric current that produces it. T⋅m/A
Define current (I).
The rate of flow of electric charge, measured in Amperes (A).
What is the effect of a charged particle moving perpendicular to a uniform magnetic field?
The particle undergoes cyclotron motion, moving in a circular path.
What happens to the magnetic field strength as you move further away from a long, straight current-carrying wire?
The magnetic field strength decreases.
What happens when the angle between a current-carrying wire and a magnetic field is 90 degrees?
The force on the wire is maximized.