Learning objective
Derive the force between parallel currents and explain the definition of the ampere.
Master the formulas for magnetic flux, the Ampère force and the torque on a current loop.
Analyse the motion of charged particles under the Lorentz force (circle, helix).
Explain the properties of dia-, para- and ferromagnets, hysteresis and the Curie point.
Expected outcomes
Can calculate the force between parallel currents and the Ampère force on a conductor, and find its direction with the left-hand rule.
Can find the magnetic flux and the work done in moving a conductor.
Can calculate the orbit radius, period and helix pitch of a particle in a magnetic field.
Can read the remanence and coercive force from a hysteresis loop and classify magnetic materials as soft or hard.
Activities
Lecture
Lecture · 1 h 20 min ·
required
Solving problems on the magnetic interaction of parallel currents. Solving problems on ferromagnets
Practice · 1 h 20 min ·
required
Final test
Test · 20 min ·
required
· pass ≥ 70%
Completion conditions
- Lecture
- Solving problems on the magnetic interaction of parallel currents. Solving problems on ferromagnets
- Final test — at least 70%