Electrical & electronic units table
Unit Name
|
Unit Symbol
|
Quantity
|
Ampere (amp)
|
A
|
Electric current (I)
|
Volt
|
V
|
Voltage (V,
E)
Electromotive
force (E)
Potential
difference (Δφ)
|
Ohm
|
Ω
|
Resistance (R)
|
Watt
|
W
|
Electric power (P)
|
Decibel-milliwatt
|
dBm
|
Electric power (P)
|
Decibel-Watt
|
dBW
|
Electric power (P)
|
Volt-Ampere-Reactive
|
var
|
Reactive power (Q)
|
Volt-Ampere
|
VA
|
Apparent power (S)
|
Farad
|
F
|
Capacitance (C)
|
Henry
|
H
|
Inductance (L)
|
siemens / mho
|
S
|
Conductance (G)
Admittance
(Y)
|
Coulomb
|
C
|
Electric
charge (Q)
|
Ampere-hour
|
Ah
|
Electric
charge (Q)
|
Joule
|
J
|
Energy (E)
|
Kilowatt-hour
|
kWh
|
Energy (E)
|
Electron-volt
|
eV
|
Energy (E)
|
Ohm-meter
|
Ω∙m
|
Resistivity (ρ)
|
siemens per meter
|
S/m
|
Conductivity
(σ)
|
Volts per meter
|
V/m
|
Electric field (E)
|
Newtons per coulomb
|
N/C
|
Electric
field (E)
|
Volt-meter
|
V·m
|
Electric flux (Φe)
|
Tesla
|
T
|
Magnetic
field (B)
|
Gauss
|
G
|
Magnetic field (B)
|
Weber
|
Wb
|
Magnetic
flux (Φm)
|
Hertz
|
Hz
|
Frequency (f)
|
Seconds
|
s
|
Time (t)
|
Meter / metre
|
m
|
Length (l)
|
Square-meter
|
m2
|
Area (A)
|
Decibel
|
dB
|
|
Parts per
million
|
ppm
|
Units prefix table
Prefix
|
Prefix
Symbol
|
Prefix
factor
|
Example
|
pico
|
p
|
10-12
|
1pF = 10-12F
|
nano
|
n
|
10-9
|
1nF = 10-9F
|
micro
|
μ
|
10-6
|
1μA = 10-6A
|
milli
|
m
|
10-3
|
1mA = 10-3A
|
kilo
|
k
|
10 3
|
1kΩ = 1000Ω
|
mega
|
M
|
10 6
|
1MHz = 106Hz
|
giga
|
G
|
10 9
|
1GHz = 109Hz
|
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