General Electronics

Reference

Resistor Table

Conversion table for milli, pico, nano, and micro

milli (m) micro (µ) Nano (n) Pico (F)
0.000000001 0.000001 0.001 1
0.00000001 0.00001 0.01 10
0.0000001 0.0001 0.1 100
0.000001 0.001 1 1000
0.00001 0.01 10 10000
0.0001 0.1 100 100000
0.001 1 1000 1000000
0.01 10 10000 10000000
0.1 100 100000 100000000
1 1000 1000000 1000000000

Symbols

Quantity Usual Symbol Unit Unit Symbol
voltage V volt V
current I amp A
charge Q coulomb C
resistance R ohm Ω
capacitance C farad F
inductance L henry H
reactance X ohm Ω
impedance Z ohm Ω
power P watt W
energy E joule J
time t second s
frequency f hertz Hz

Formulas

Ohm's Law

V = Voltage I = Current R = Resistance

Very Important Rule

V = R x I

Power

W = V x I

Time Constant

TC = Time Constant R = Resistance C = Capacitance

TC = R x C

Converstions

Prefix Prefix Symbol Value
pico p 0.000 000 000 001
nano n 0.000 000 001
micro µ 0.000 001
milli m 0.001
centi c 0.01
deci d 0.1
(none) 1
deca D 10
hecto h 1 00
kilo k 1 000
mega M 1 000 000
giga G 1 000 000 000
tera T 1 000 000 000 000
peta P 1 000 000 000 000 000
exa E 1 000 000 000 000 000 000
zetta Z 1 000 000 000 000 000 000 000
yotta Y 1 000 000 000 000 000 000 000 000

Schematic Cheat Sheet

Using an Oscilloscope

These are great videos on how to use an oscilloscope. He gets straight to the point and they are easy to understand. I ended up buying the OWON PDS5022S because of these tutorials. By far the cheapest desktop oscilloscope I could find new. I don't know how I started this hobby without one. Thanks Afrotech Mods.

Tutorial I Tutorial II Tutorial III
electronics/general.txt · Last modified: 2012/09/19 12:58 by admin
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