Electrical engineering calculator

Basics

Battery Capacity

Capacitor Capacitance

Decibel, votage, power converter

Decibel - factor converter

Electric Power

Electric Energy

Electric Charge

Electrostatic force, Coulombs Law

Internal resistance of a power source

Ohm's law and power

Table of temperature coefficients

Temperature drift of resistance

Voltage drop

Wire resistance

AC

Alternating voltage values

Alternating voltage and time

Frequency and wavelength

Alternating voltage value and angle

Frequency and periodic time

RMS values of AC voltage

Circuits with resistors

Total resistance of a resistor in parallel

Parallel- total resistance of 2 resistors

Series resistance for a voltmeter

Parallel resistance for an ampere meter

Voltage divider

Loaded voltage divider

Pi Attenuator

T Attenuator

Circuits with capacitors

Capacitance of a capacitor series circuit

Total capacitance and series capacitors

Reactance Xc of a capacitor

Time constant of an R/C circuit (low pass)

Capacitor charging voltage at a time

Capacitor discharge voltage at a time

R/C for the charging voltage at a time

Series circuit R/C

Parallel circuit R/C

Low pass-filter R/C

High pass-filter R/C

Integrator R/C

Differentiator R/C

Cutoff-frequency R,C

R and C for a given impedance

Circuits with inductors

Inductance

Reactance of a coil

Cutoff frequency R/L

Differentiator R/L

Highpass filter R/L

Lowpass filter R/L

Series circuit R/L

Parallel circuit R/L

Transformer

Capacitor and inductors

Resonant frequency f0 calculator

Resistors-capacitors-inductors series circuit

Resistors-capacitors-inductors parallel circuit

Resonance of RCL parallel circuit

Resonance of RCL series circuit

Electronics

LED resistor

Zener diode resistor (variable)

Zener diode resistor (fix)

Loudspeaker

Loudspeaker crossover 6 dB

Loudspeaker crossover 12 dB

Loudspeaker crossover 18 dB

Simple Electrics