Electromagnetic induction

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
26
Chapter Pages
Three meaningful routes: concepts, laws, and model research.
26.1
Law of electromagnetic induction
Flow change and EDS
26.2
Self-induction
Electrical current inertia
26.3
Magnetic field energy
Where the coil energy is stored
→
Study route
26.1 Law of Electromagnetic Induction
- The EDS in the outline is equal to the rate of change of the magnetic flow with the sign expressing the Lenz rule. The flow can be changed by field, area or shape.
26.2 Self-induction
The change in current in the circuit changes its own magnetic flow and creates an EDS that prevents it. Induction depends on geometry and the heart.
26.3 Magnetic field energy
The source's work on the current is stored in the magnetic field of the coil. If the current decreases, the field returns the energy to the circuit.
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.