## Appendix

### A.I Basic Quantities, Units, and Physical Constants

**Table A.1** Units of Measurement of Selected Quantities, in SI System (Legally Approved)

#### A.I.1 More Important Physical Constants

Propagation velocity of electromagnetic wave in vacuum *c*_{o} = (2.997930 ± 0.000003) 10^{8} m/s

Acceleration due to gravity in normal conditions *g*_{n} = 9.80665 m/s^{2}

Electric constant, permittivity of vacuum ${\text{e}}_{o}=(8.85416\pm 0.00018){10}^{-12}\text{F/m}=1/{\mu}_{0}{c}_{0}^{2}=1/(4\pi \cdot 9){10}^{-9}\text{F/m}$

Magnetic constant, magnetic permeability of vacuum *μ*_{0} = 4*π* × 10^{−7} H/m = 1.25664 × 10^{−6} H/m

### A.II Fundamental Formulae of Vector Calculus

#### A.II.1 Systems of Coordinates

##### A.II.1.1 System of Rectangular (Cartesian) ...