0195136047.pdf

APPENDIX

C

Technical Terms, Units, Constants, and

Conversion Factors for the SI System

C.1Physical Quantities

C.2Prefixes

C.3Physical Constants

C.4Conversion Factors

TABLE C.1Physical Quantities

Physical Quantity SI Unit Symbol

Length meter m

mass kilogram kg

time second s

current ampere A

admittance siemen (A/V) S

angle radian rad

angular acceleration radian per second squared rad/s^2

angular velocity radian per second rad/s

apparent power voltampere (VA) VA

area square meter m^2

capacitance farad (C/V) F

charge coulomb (As) C

conductance siemen (A/V) S

electric field intensity volt/meter V/m

electric flux coulomb (As) C

electric flux density coulomb/square meter C/m^2

energy joule (Nm) J

force newton (kgm/s^2 )N

frequency hertz (1/s) Hz

impedance ohm (V/A) 

inductance henry (Wb/A) H

linear acceleration meter per second squared m/s^2

linear velocity meter per second m/s

magnetic field intensity ampere per meter A/m

magnetic flux weber (Vs) Wb

magnetic flux density tesla (Wb/m^2 )T

magnetomotive force ampere or ampere-turn A or At

moment of inertia kilogram-meter squared kgm^2

power watt (J/s) W

pressure pascal (N/m^2 )Pa

reactance ohm (V/A) 

reactive power voltampere reactive var

resistance ohm (V/A) ·m

resistivity ohmmeter m

susceptance siemen (A/V) S

torque Newtonmeter Nm

voltage volt (W/A) V

volume cubic meter m^3

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