# Formulary

The following table contains the mathematical formulas and the physical conformities used at these pages

# Mechanics

Chapter no. Formula Comment
[2.1a]

[2.1b]

[2.1c]

Constant speed
[2.2a]

[2.2b]

[2.2c]

Constant acceleration
[2.3a]

[2.3b]

[2.3c]

Constant acceleration
[2.4a]

[2.4b]

[2.4c]

Constant acceleration
[2.5]

Kinetic friction
[2.6]

Static friction
[2.7a]

[2.7b]

[2.7c]

Static friction
[2.8a]

[2.8b]

[2.8c]

Kinetic friction
[2.9]

Drag coefficient
[2.10]

Mechanical work
[2.11]

Potential energy
[2.12]

Kinetic energy
[2.13a]

[2.13b]

Power
[2.14]

Torque
[2.15a]

[2.15b]

[2.15c]

Power and acceleration
[2.16]

Power and drag
[2.17]

Power and potential energy

# Electrical engineering

Chapter no. Formula Comment
[3.1]

Force between point charges
[3.2]

Potential energy caused by point charges
[3.3]

Voltage
[3.4]

Charge
[3.5]

Energy stored inside of a capacitor
[3.6a]

[3.6b]

Electric current
[3.7]

Resistance
[3.8]

Electric power
[3.9]

Series resistance
[3.10]

Total voltage accross resistors conmnected in series
[3.11]

Total power accross resistors conmnected in series
[3.12]

Total resistance of a parallel circuit
[3.13]

Total current through a parallel circuit
[3.14]

Total power accross a parallel circuit
[3.15]

Magnetic flux density
[3.16]

Lorentz force
[3.17]

Magnetic field strength
[3.18]

Magnetic field of a point charge
[3.19]

Magnetic flux density of a point charge
[3.20]

Magnetic field of a straight wire
[3.21]

Magnetic field of an inductor
[3.22]

Relative permeability
[3.23]

Electromotive force (EMF)
[3.24]

Electromotive force accross an inductor.
[3.25]

AC voltage
[3.26]

Frequency
[3.27]

AC voltage
[3.28]

Magnetic flux
[3.29]

Inductance
[3.30]

Current through an inductor
[3.31]

Charging procedure of a capacitor
[3.32]

Voltage across a capacitor
[3.33]

Current through a capacitor
[3.34]

Current through an inductor
[3.35]

Voltage accross an inductor
[3.36]

"Discharging" an inductor
[3.37]

"Discharging" an inductor
[3.38]

Electric energy
[3.39]

Electric energy stored inside an inductor
[3.40]

Magnetic energy density
[3.41]

Magnetic energy density
[3.42]

Frequency of a LC oscillator
[3.43]

Frequency of a LC oscillator
[3.44]

Biot-Savart law
[3.45]

Biot-Savart law
[3.46]

Biot-Savart law

# Electric motors

Chapter no. Formula Comment
[4.1]

Copper loss
[4.2]

Resistivity
[4.3]

Efficiency
[4.4]

Torque
[4.5]

Torque and work
[4.6]

Rotational speed
[4.7]

Mechanical power output of an electric motor

# Electrochemistry

Chapter no. Formula Comment
[5.1]

Capacity of a battery

# Heat engines

Chapter no. Formula Comment
[6.1]

Compression ratio

# Semiconductors

Chapter no. Formula Comment
[7.1]

Stromverstärkungsfaktor eines Bipolartransistors
[7.2]

Spannungsverstärkung eines Operationsverstärkers mit negativer Rückkopplung
[7.3]

Schmitt-Trigger

# Metrology

Chapter no. Formula Comment
[8.1]

Numeric value of measurement
[8.2]

F = Xm - Xc

Absolute error
[8.3]

Relative error

# Basic circuits

Chapter no. Formula Comment
[9.1]

τ = R * C

Time constant
[9.2]

Cut off frequency
[9.3]

Phase angle
[9.4]

[9.4]     T = ln(2)RC

Astable multivibrator
[9.5]

Integrator circuit
[9.6]

Capacitor
[9.7]

Capacitor
[9.8]

Integrator circuit
[9.9]

Integrator circuit
[9.10]

Differentiator circuit