Common Electrical Engineering Formulas:
1. Ohm's Law: V = I * R
- V: Voltage (in volts)
- I: Current (in amperes)
- R: Resistance (in ohms)
2. Power in a DC Circuit: P = V * I
- P: Power (in watts)
- V: Voltage (in volts)
- I: Current (in amperes)
3. Power in an AC Circuit: P = V * I * cos(θ)
- P: Power (in watts)
- V: Voltage (in volts)
- I: Current (in amperes)
- θ: Phase angle between voltage and current
4. Capacitance: C = Q / V
- C: Capacitance (in farads)
- Q: Electric charge (in coulombs)
- V: Voltage (in volts)
5. Inductance: L = Φ / I
- L: Inductance (in henries)
- Φ: Magnetic flux (in webers)
- I: Current (in amperes)
6. Impedance of a Resistor: Z = R
- Z: Impedance (in ohms)
- R: Resistance (in ohms)
7. Impedance of a Capacitor: Z = 1 / (jωC)
- Z: Impedance (in ohms)
- j: Imaginary unit (√-1)
- ω: Angular frequency (in radians per second)
- C: Capacitance (in farads)
8. Impedance of an Inductor: Z = jωL
- Z: Impedance (in ohms)
- j: Imaginary unit (√-1)
- ω: Angular frequency (in radians per second)
- L: Inductance (in henries)
9. Kirchhoff's Voltage Law (KVL): Σ(Voltage drops) = Σ(Voltage sources)
- The sum of voltage drops across components in a closed loop is equal to the sum of the voltage sources in that loop.
10. Kirchhoff's Current Law (KCL): Σ(Currents entering a node) = Σ(Currents leaving a node)
- The sum of currents entering a node is equal to the sum of currents leaving that node.
1. Ohm's Law: V = I * R
- V: Voltage (in volts)
- I: Current (in amperes)
- R: Resistance (in ohms)
2. Power in a DC Circuit: P = V * I
- P: Power (in watts)
- V: Voltage (in volts)
- I: Current (in amperes)
3. Power in an AC Circuit: P = V * I * cos(θ)
- P: Power (in watts)
- V: Voltage (in volts)
- I: Current (in amperes)
- θ: Phase angle between voltage and current
4. Capacitance: C = Q / V
- C: Capacitance (in farads)
- Q: Electric charge (in coulombs)
- V: Voltage (in volts)
5. Inductance: L = Φ / I
- L: Inductance (in henries)
- Φ: Magnetic flux (in webers)
- I: Current (in amperes)
6. Impedance of a Resistor: Z = R
- Z: Impedance (in ohms)
- R: Resistance (in ohms)
7. Impedance of a Capacitor: Z = 1 / (jωC)
- Z: Impedance (in ohms)
- j: Imaginary unit (√-1)
- ω: Angular frequency (in radians per second)
- C: Capacitance (in farads)
8. Impedance of an Inductor: Z = jωL
- Z: Impedance (in ohms)
- j: Imaginary unit (√-1)
- ω: Angular frequency (in radians per second)
- L: Inductance (in henries)
9. Kirchhoff's Voltage Law (KVL): Σ(Voltage drops) = Σ(Voltage sources)
- The sum of voltage drops across components in a closed loop is equal to the sum of the voltage sources in that loop.
10. Kirchhoff's Current Law (KCL): Σ(Currents entering a node) = Σ(Currents leaving a node)
- The sum of currents entering a node is equal to the sum of currents leaving that node.
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