@electroniceducation: This photo shows important electrical and electronics formulas used in wiring, electronics, motors, power systems, and electrical calculations. Here’s a simple explanation of each formula: 13. Current Formula I = Current (Ampere) V = Voltage (Volt) R = Resistance (Ohm) This is Ohm’s Law. It tells how much current flows in a circuit. Example: 12V battery 6Ω resistor 14. Resistance Formula � ρ (rho) = Resistivity of material L = Length of wire A = Area/thickness of wire Meaning: Long wire → more resistance Thick wire → less resistance 15. Resistivity Formula Used to find the material resistivity of a conductor. Copper has low resistivity, so it is widely used in wiring. 16. Capacitance Formula � C = Capacitance (Farad) Q = Charge V = Voltage Capacitor stores electrical charge. 17. Energy in Capacitor � Shows stored energy inside a capacitor. Higher voltage = much more stored energy. 18. Parallel Combination Resistors in Parallel Parallel resistance becomes smaller. Capacitors in Parallel Capacitance increases. 19. Series Combination Resistors in Series Total resistance increases. Capacitors in Series Total capacitance decreases. 20. Electrical Work � W = Energy/Work (Joule) t = Time Used to calculate electrical energy consumed. 21. Power Formula � Power means speed of energy usage. Unit: Watt (W) 22. Joule’s Law � This calculates heat produced in a wire or heater. Applications: Electric heater Iron Stove 23. Current From Power Used in AC systems to calculate current. PF = Power Factor Important for: Motors UPS Generators 24. Power Factor Formula � Power factor shows electrical efficiency. PF near 1 = better efficiency 25. Efficiency Formula Used for: Motors Inverters Transformers Higher efficiency = less power loss. 26. Temperature Difference � Measures temperature change. Units at Bottom A = Ampere V = Volt Ω = Ohm W = Watt F = Farad J = Joule kW = Kilowatt kVA = Kilovolt-Ampere PF = Power Factor These formulas are basic but very important for: Electricians AC technicians Electronics repair Solar systems Inverters Motor control systems follow up with circuit diagram #basicelectronics #foryou #CircuitDesign #ElectronicsExplained #ElectronicsExplained
