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.
What is the difference between Biot-Savart Law and Ampère’s Law?
Biot-Savart Law: Calculates the magnetic field from a small current segment, useful for complex geometries. Ampère’s Law: Relates the magnetic field around a closed loop to the enclosed current, useful for symmetrical situations.
How do you determine the direction of magnetic force on a positive charge using the right-hand rule?
Point your thumb in the direction of the velocity, your fingers in the direction of the magnetic field, and your palm will point in the direction of the force.
How do you determine the direction of magnetic force on a current-carrying wire using the right-hand rule?
Point your thumb in the direction of the current, your fingers in the direction of the magnetic field, and your palm will point in the direction of the force on the wire.
What are the steps to apply Ampère’s Law?
- Choose an Amperian loop. 2. Calculate the line integral of the magnetic field around the loop. 3. Determine the current enclosed by the loop. 4. Apply the formula: .