Πίσω - Θεωρία 8

 

 

 

Name (Symbol)

Base Unit

Unit Symbol

Angular Frequency

radians/second

w

Admittance (Y)

siemens

S

Capacitance (C)

farad

F

Capacitive Reactance (XC)

ohm

W

Center Frequency (Fc)

hertz

Hz

Charge

coulomb

C

Conductance (G) []

siemen [mho]

S () [1/W]

Conductivity (s)

siemens/meter

S/m

Current (I)

ampere

A

Dipole Moment

coulomb·meter

p

Electric Charge

coulomb

Q

Electric Flux

coulomb

Y

Electric Flux Density

coulomb/meter2

D

Electric Susceptibility

 1

ce

Energy (E)

joule

J

Frequency

hertz

Hz

Impedance (Z)

ohm

W

Inductance (L)

henry

H

Inductive Reactance (XL)

ohm

W

Joule

watt·second

J

Linear Current Density

amperes/meter2

a

Magnetic Field

tesla

T

Magnetic Flux

weber

F

Magnetic Flux Linkage

weber

L

Magnetic Flux Density

tesla

B

Magnetic Susceptibility

 1

cm

Magnetic Vector Potential

weber/meter

A

Magnetization

ampere/meter

M

Magnetomotive Force

weber

Wb

Mutual Inductance

henry

Li,j    Mi,j

Permeability

henrys/meter

m

Permittivity

farads/meter

e

Phase Angle

radian

f

Phase Coefficient

radian

b

Potential (V)

volt

V

Power (P)

watt

W

Reluctance (R)

1/henrys

1/H

Reluctivity

meters/henry

n

Resistance (R)

ohm

W

Resistivity (r)

ohm·meter

W*m

Resonant Frequency (Fr)

hertz

Hz

Surface Density of Charge

coulombs/meter2

s

Susceptance (B)

siemen

S

Volume Density of Charge

coulombs/meter3

r

Volume Resistivity

ohms/meter3

r

Wavelength

meter

l

 

Πολλαπλάσια και υποπολ/σια  των ηλεκτρικών μονάδων

Symbol

Unit Name

Multiply/Divide by

Scientific Notation

T

tera

x 1 000 000 000 000

1012

G

giga

x 1 000 000 000

109

M

mega

x 1 000 000

106

k

kilo

x 1 000

103

m

milli

÷ 1 000

10–3

µ

micro

÷ 1 000 000

10–6

n

nano

÷ 1 000 000 000

10–9

p

pico

÷ 1 000 000 000 000

10–12

f

femto

÷ 1 000 000 000 000 000

10–15

a

alto

÷ 1 000 000 000 000 000 000

10–18

 

ΗΛΕΚΤΡΙΚΕΣ  ΣΤΑΘΕΡΕΣ

* : Reduced Planck constant, = h/2p
† : Atomic Units
 

Name

Symbol

Value

Boltzmann

k

8.617 343 x 10-5 eV (molecule·K)
1.380 650 5 x 10-23  J/K

Charge Density

 

1.081 202 317 x 1012  C/m3

Conductance Quantum

G0

7.748 091 733 x 10-5  S

Current

 

6.623 617 82 x 10-3  Ω

Electron Charge/Mass Ratio

e/me

1.758 820 12 x 1011  C/kg

Electric Dipole Moment

 

8.478 353 09 x 10-30  C·m

Electric Field

 

5.142 206 42 x 1011  V/m

Electric Field Gradient

 

9.717 361 82 x 1021  V/m2

Electric Potential

 

27.211 384 5  V

Electric Quadrupole Moment

 

4.486 551 24 x 10-40  C·m2

Electron Volt

eV

1.602 176 53 x 10-19  J

Elementary Charge

e

1.602 176 53 x 10-19  C

Impedance of Free Space

Z0

376.730 313 461 (120·π)  Ω

Josephson

KJ

2.350 517 42 x 105  T

Magnetic Flux Quantum

F0

2.067 833 72 x 10-15  Wb

Magnetic Flux Density

 

4.486 551 24 x 10-40  C·m2

Magnetizability

 

7.891 036 60 x 10-29  J/T2

Magnetic Flux Dipole Moment

 

1.854 801 90 x 10-23  J/T

Permeability of Free Space

m0

1.256 637 061 4 x 10-6  H/m (N/A2)

Permittivity of Free Space

e0

8.854 187 817 x 10-12  F/m

Planck *

h

4.135 667 43 x 10-15  eV·s
6.626 069 3 x 10-34  J·s

von Klitzing

RK

25 812.807 449  Ω

 

SUPER ELECTRONICS GR

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