Permanent electric current

Content and key concepts

This chapter links observed phenomena, physical models, and mathematical laws, first form a qualitative picture, then explore the relationships in interactive models.
FGOS · Grade 8
PIF · Baseline
theory + model
8
Pages in this chapter
Three meaningful routes: concepts, laws, and model research.
8.1
Current and voltage
Ordered movement of charges
8.2
Resistance and Oma Law
Current-to-voltage connection
8.3
Wiring connections
Consequent and parallel chains
→
Study route
8.1. Current and voltage
- Electric current is the directional movement of charged particles, which requires free carriers, an electric field and a closed circuit.
8.2 Resistance and Oma Law
- Resistance shows how much the conductor prevents the directional movement of the charges. For a metal conductor at constant current temperature, the voltage is directly proportional.
8.3. Wiring connections
- The connection method determines the distribution of current and voltage. Equivalent resistance replaces a complex piece with one calculation element.
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.