# Electronics Formulas

• Formulas - Equations

## Active and Passive Frequency Filters – Formulas & Equations

Frequency Filters – Active and Passive Filters Equations and Formulas Frequency Filters: Passive Filters The type of frequency selecting circuits that are made of only passive components such as resistor,…

• Formulas - Equations

## Time Constant τ “Tau” Formulas for RC, RL & RLC Circuits

Time Constant τ “Tau” Equations for RC, RL and RLC Circuits Time constant also known as tau represented by the symbol of “τ” is a constant parameter of any capacitive…

• Formulas - Equations

## Operational Amplifier (OP-AMP) – Formulas and Equations

Operational Amplifier (OP-AMP) Formulas Operational Amplifiers: Inverting Amplifier: The following terms are used in the formulas and equations for Operational Amplifies. Rf = Feedback resistor Rin = Input Resistor Vin ­­­= Input…

• Formulas - Equations

## Bipolar Junction Transistor (BJT) – Formulas and Equations

Formula & Equations for Bipolar Junction Transistor “BJT “ Bipolar Junction Transistor: Current Gains in BJT: There are two types of current gain in BJT i.e. α and β. Where…

• Formulas - Equations

## Diode Formulas & Equations – Zenner, Shockley & Rectifier

Shockley, Zenner & Diode Rectifier Formulas and Equations Diode Equation for I-V Curve The I-V curve (diode characteristic curve) can be find by the following no linear equations. This equation…

• Formulas - Equations

## Electric & Magnetic Flux, Density & Field Intensity Formulas

Electric Flux, Magnetic Flux, Electric Density, Magnetic Density, Electric Intensity and Magnetic Intensity Formulas & Equations Electric Flux Formula: Electric flux is the electric field lines passing through an area A.…

• Formulas - Equations

## Formula & Equations for Ohm’s, Kirchhoff’s & Coulomb’s Laws

Ohm’s Law, Kirchhoff’s Laws (KVL & KCL ) & Coulombs Laws Formulas & Equations Ohm’s Law Formulas Ohm’s law shows the relationship between current “I” & the voltage “V” where the…

• Formulas - Equations

## Equations & Formulas For RLC Circuits (Series & Parallel)

RLC Circuits – Series & Parallel Equations & Formulas RLC Circuit: When a resistor, inductor and capacitor are connected together in parallel or series combination, it operates as an oscillator…

• Circuit Analysis

## Voltage & Current Divider Rules (VDR & CDR) Equations

Voltage Divider Rule (VDR) & Current Divider Rule (CDR) Equations & Formulas Voltage division and current division are useful techniques which are used to express the voltage and current across…

• Resistors

## Resistance, Conductance, Impedance and Admittance Formulas

Formulas & Equations for Resistance, Conductance, Impedance & Admittance Resistance Formulas Resistance is the opposition to the flow of electrical current denoted by “R” and measured in ohms “Ω”. For any…