Unit of Electrical Units of Measure are used for measurement of electrical things. Units of Electrical Measure are Units of Voltage, Units of Current, Units of Resistance, Units of Conductance, Units of Capacitance, Units of Charge, Units of Inductance, Units of Power, Units of Impedance, Units of Frequency.
|
Electrical Parameter |
Symbol |
Measuring Unit |
Formula |
|
Voltage |
V or E |
Volt |
Electrical Potential V = I × R |
|
Current |
I or i |
Ampere |
Electrical Current I = V ÷ R |
|
Resistance |
R or Ω |
Ohm |
DC Resistance R = V ÷ I |
|
Conductance |
G or ℧ |
Siemen |
Reciprocal of Resistance G = 1 ÷ R |
|
Capacitance |
C |
Farad |
Unit of Capacitance C = Q ÷ V |
|
Charge |
Q |
Coulomb |
Electrical Charge Q = C × V |
|
Inductance |
L or H |
Henry |
Inductance VL = -L(di/dt) |
|
Power |
W |
Watts |
Power P = V × I or I2 × R |
|
Impedance |
Z |
Ohm |
AC Resistance Z2 = R2 + X2 |
|
Frequency |
Hz |
Hertz |
Frequency ƒ = 1 ÷ T |
Multiples and sub-multiples for amperes
|
Name |
Abbreviation |
Current |
|
femtoamps |
fA |
10-15 amperes |
|
picoamps |
pA |
10-12 amperes |
|
nanoamps |
nA |
10-9 amperes |
|
microamps |
µA |
10-6 amperes |
|
milliamps |
mA |
10-3 amperes |
|
amps |
A |
amperes |
|
kiloamps |
kA |
103 amperes |
|
Mega amps |
MA |
106 amperes |
|
Giga amps |
G |
109 amperes |
|
Terra amps |
T |
1012 amperes |
|