Electrical Geeks

Electrical Formulas-1 Electrical Current Formulas 1.Electrical Current Formulas in DC Circuit I=V/R I = P/V I = √P/R Where I = Current in Amperes (A) V = Voltage in Volts (V) P = Power in Watts (W) R = Resistance in Ohm (Ω) 2.Electrical Current Formulas in Single Phase AC Circuit I = P / (V x Cosθ) I=(V/Z) …Where Z = impedance = Resistance of AC Circuits Electrical Current Formulas in Three Phase AC Circuit I = P / √3xVxCosθ Voltage or Electrical Potential Formulas 3.Electrical Potential or Voltage Formula in DC Circuits V = I x R V = P / I V = √ (P x R) 4.Voltage or Electrical Potential Formulas in Single Phase AC Circuits V = P/(IxCosθ) V = I / Z… Where Z = impedance = Resistance of AC Circuits Electrical Resistance Formulas R = V/I R = P/I 2 R = V 2 /P 5.Electrical Resistance & Impedance Formulas in AC Circuits In AC Circuits (Capacitive or inductive Load), Resistance = Impedance i.e., R = Z Z = √(R 2 + X L 2 )… In ...

Coulomb’s Law-Explanation Statement Formulas Principle Limitations Charles Augustin de Coulomb Coulomb's law, or Coulomb's inverse-square law, is a law of physics describing the electrostatic interaction between electrically charged particles. The law was first published in 1785 by French physicist Charles Augustin de Coulomb and was essential to the development of the theory of electromagnetism. It is analogous to Isaac Newton's inverse-square law of universal gravitation. Coulomb's law can be used to derive Gauss's law, and reverse can be possible. The law has been tested heavily, and all observations have upheld the law's principle. Coulomb's law statement: 1st law:  The force is along the straight line joining them. If the two charges have the same sign, the electrostatic force between them is repulsive ; if they have different sign, the force between them is attractive 2nd law: The magnitude of the electrostatic...