This physics tutorial provides a basic introduction into capacitors. It explains the concept of capacitance and how it works. It also discusses the working principle of capacitors. This video contains plenty of examples and practice problems for you to work on. Here is a list of topics.
1. What is a capacitor?
2. Capacitors are made of two metal conductors separated by an insulator such as air, quartz, mica, or even water
3. Electric Charge, Capacitance and Voltage
4. The unit of electric charge is the coulomb
5. Common Units of Capacitance - Farads, uF, nF, pF
6. Capacitance - Charge Efficiency - Coulomb per volt
7. Electric Potential - Potential Energy Per Unit Charge
8. Voltage vs Electric Potential
9. Calculating Electric Charge Given Excess Number of Electrons
10. Calculating The Number of Protons and Electrons Giving Total Charge on Metal
11. Parallel Plate Capacitor Formula
12. Relationship Between Capacitance, Area, and Distance
13. Permittivity of Free Space Constant
14. Dielectrics, Capacitance and Voltage Relationship
15. Calculating the New Capacitance and Voltage When Dielectric Constant / Insulator is Used
16. Electric Field of Parallel Plate Capacitor
17. Surface Charge Density, Electric Field, Total Charge, and Area Calculations
18. Capacitance Equation / Formula Derivation
19. Potential Energy Stored in a Capacitor
20. Energy Density inside Electric Field Between Parallel Plate Capacitor
21. Capacitors - How it works
22. Explaining the concept of charging capacitors - using electron flow and charge accumulation
23. Discharging a capacitor explained - Electron flows until a state of equilibrium is achieved.
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