1 ไฟฟ้าสถิตย์ physics4รินธรรม ชำระใจ1. The document discusses concepts related to electrostatics including electric charges, Coulomb's law, and the forces between charged particles.
2. Coulomb's law states that the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
3. Examples are given to demonstrate how to calculate the electrostatic force between two charges using Coulomb's law.
ไฟฟ้ากระแสTom VipguestThis document discusses various electrical components and concepts including resistors, light dependent resistors, thermisters, diodes, electromotive force, electric energy, resistor circuits, batteries circuits, circuit analysis, meters, ammeters, voltmeters, ohmmeters, and electric current. It provides equations and diagrams to explain relationships between voltage, current, resistance, power and other electrical quantities.
ไฟฟ้ากระแสTom VipguestThis document discusses various electrical components and concepts including resistors, light dependent resistors, thermisters, diodes, electromotive force, electric energy, resistor circuits, batteries circuits, circuit analysis, meters, ammeters, voltmeters, ohmmeters, and electric current. It provides equations and diagrams to explain relationships between voltage, current, resistance, power and other electrical quantities.