Magnetic Field

Содержание и основные понятия

This chapter links observed phenomena, physical models, and mathematical laws, first form a qualitative picture, then explore the relationships in interactive models.
GEF · 11 grade
PIF · Baseline
theory + model
25
Chapter Pages
Three meaningful routes: concepts, laws, and model research.
25.1
Amper's Power
Activation of field to current
25.2
Lorenz's Power
Movement of charged particle in field
25.3
Magnetic properties of the substance
Dia-, para- and Ferromagnetics
→
Study route
25.1 Amper force
- The magnetic field operates on the conductor with current because it acts on the moving charges inside it. The force is maximum when the conductors and fields are perpendicular.
25.2. Lorenz force
The magnetic force of Lorenz is perpendicular to the speed and therefore does not do the work.
25.3 Magnetic properties of the substance
- The substance changes the magnetic field because of orbital motion and electron backs. Reactions can weaken the field, slightly reinforce it, or create stable domains.
Basis of contents:
The federal work programme on physics, the GEF OSL/GS and the thematic sequence of popular school lines are written specifically for Alterna and does not reproduce textbooks.