All electrical necessary formula
All electrical necessary formula:
1. Ohm's Law: \(V = I \times R\)
Where:
\(V\) = Voltage (volts)
\(I\) = Current (amperes)
\(R\) = Resistance (ohms)
2. Power: \(P = VI\)
Where:
\(P\) = Power (watts)
\(V\) = Voltage (volts)
\(I\) = Current (amperes)
3. Energy: \(E = Pt\)
Where:
\(E\) = Energy (joules)
\(P\) = Power (watts)
\(t\) = Time (seconds)
4. Kirchhoff's Voltage Law (KVL): The sum of the voltages around any closed loop in a circuit is zero.
5. Kirchhoff's Current Law (KCL): The total current entering a junction in a circuit is equal to the total current leaving the junction.
6. Capacitance: \(C = \frac{Q}{V}\)
Where:
\(C\) = Capacitance (farads)
\(Q\) = Charge stored (coulombs)
\(V\) = Voltage (volts)
7. Inductance: \(V = L \frac{di}{dt}\)
Where:
\(V\) = Voltage (volts)
\(L\) = Inductance (henrys)
\(di/dt\) = Rate of change of current (amperes/second)
8. Frequency: \(f = \frac{1}{T}\)
Where:
\(f\) = Frequency (hertz)
\(T\) = Period (seconds)
9. Impedance in AC circuits: \(Z = \sqrt{R^2 + (X_L - X_C)^2}\)
Where:
\(Z\) = Impedance (ohms)
\(R\) = Resistance (ohms)
\(X_L\) = Inductive reactance (ohms)
\(X_C\) = Capacitive reactance (ohms)
These are just a few fundamental electrical formulas. Depending on the specific topic or application within electrical engineering, there are many more formulas and equations that may be relevant.