What are the electrical formulas?
Table of Contents
What are the electrical formulas?
Electrical Resistance Formulas
| Quantity | DC | Single Phase AC |
|---|---|---|
| Voltage (V) | V = I x R V = P / I V = √ (P x R) | V = P/(I x Cosθ) V = I / Z |
| Power (P) | P = IV P = I2R P = V2/R | P = V x I x Cosθ P = I2 x R x Cosθ P = (V2/R) x Cosθ |
| Resistance (R) | R = V/I R = P/I2 R = V2/P | Z = √(R2 + XL2) Z = √(R2 + XC2) Z = √(R2 + (XL– XC)2 |
What kind of math is used in electrical engineering?
Mathematics is a big part of an engineer’s daily work, including statistics, calculus, algebra, geometry and trigonometry.
What is power formula in electrical engineering?
Power = force multiplied by speed (velocity) P = F × v.
How many formulas are there in electricity?
Electricity Formulas
| Quantity | Formulas | Unit |
|---|---|---|
| Voltage V | V = E / Q or V = W / Q E = Energy, W = Work done | Volts (V) |
| Resistance R | R = ρl / A ρ = Resistivity, l = length, A = Area or, R = V / I | Ohm (Ω) |
| Power P | P = VI | Watts (W) |
| Conductivity σ | sigma = 1 / ρ | Siemens per meter (S/m) |
What are the electrical engineering formulas and equations?
Following are the electrical engineering formulas and equations for the basic quantities i.e. current, voltage, power, resistance and impedance in both DC and AC circuits (single phase and three phase). VL = √3 VPH or VL = √3 EPH … [ Star Connection] VL = VPH … [ Delta Connection]
How do you calculate VL in Electrical Engineering?
Following are the electrical engineering formulas and equations for the basic quantities i.e. current, voltage, power, resistance and impedance in both DC and AC circuits (single phase and three phase). VL = √3 VPH or VL = √3 EPH … [ Star Connection]
Do you have formulas for your electrical exam?
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What is the formula to calculate electric power?
Electric Power Formulas 1 P = V x I Cosθ 2 P = I2 x R Cosθ 3 P = (V2/R) Cosθ