I have used standard units, symbols and suffixes throughout this work. Here they are:
Units
Ω or R: ohms (resistance)
F: farads (capacitance)
H: henries (inductance)
s: seconds (time)
Hz: hertz (frequency)
°: degrees (phase angle)
V: volts (electrical potential)
A: amperes (electrical current)
W: watts (power)
J: joules (energy or work)
Symbols
R: resistance
C: capacitance
L: inductance
V: voltage
I: current
XC: capacitive reactance
XL: inductive reactance
Z: impedance
f: frequency
ϕ: phase angle
fO: resonant frequency
Zo: dynamic (resonant) impedance
Electronics engineers tend to deal in a very wide range of numbers, from million-millionths of farads to millions of ohms. Hence it is usual to use a range of letter suffixes to indicate the order of magnitude of a number.
These are the standard suffixes used in this book:
p: × 10−12
n: × 10−9
?: × 10−6
m: × 10−3
k: × 103
M: × 106
So, for instance, = 1mA; 1M × 1 nF = 1ms; and so on.