Skip to main content
AllScience
Tools
Home
Categories
About
Search tools...
Ctrl+K
Preparing your Lab
AllScienceTools
Home
Topics
Search
About
Ohm's & Power Law
V
I
R
V = IR | P = VI = I²R
Series vs Parallel
Series
R_eq = R₁ + R₂ + ...
I = Constant
Parallel
1/R_eq = 1/R₁ + 1/R₂...
V = Constant
Resistor Color Codes
Color
Digit
Multiplier
Tolerance
Black
0
1
Brown
1
10
1%
Red
2
100
2%
Orange
3
1k
Yellow
4
10k
Green
5
100k
0.5%
Blue
6
1M
0.25%
Violet
7
10M
0.1%
Gray
8
0.05%
White
9
Gold
0.1
5%
Silver
0.01
10%