Permanent current laws

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.
GEF · 10 grade
PIF · Baseline
theory + model
24
Pages in this chapter
Three meaningful routes: concepts, laws, and model research.
24.1
Full electrical circuit
EDS and internal resistance
24.2
Work and current capacity
Electric power
24.3
The current in different media
Metals, electrolytes, gases, vacuum and semiconductors
→
Study route
24.1. Full electrical circuit
The source divides the charges at the expense of the external forces, the EDS equals their work on a single charge, and the internal resistance causes the voltage to fall inside the source.
24.2. Work and current power
- The electric field works on the charges, and the energy is converted into heat, light, mechanical or chemical energy.
24.3. The current in different media
- The nature of chargers depends on the environment: electrons in the metal and vacuum, ions in the electrolyte, electrons and ion in the gas, electron and holes in the semiconductor.
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.