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AQA Syllabus 1-9
1 Safety
Monostables
Astables
Basic Calculation Q1
Basic Calculation Q2
555 Astable Oscillation
555 Monostable Multivbrator
Operational Amplifier
Inverting Amplifiers
Activities
Glossary
Recognition
Introduction
The PIC Chip
Program Section A
Program Section B
Program Section C
Program Section D
Useful Websites
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Component Recognition
  Resistors
  Resistors control the flow of current in a circuit, by 'resisting' the flow of electrons. The value of a resistor is measured in ohms. Resistors are manufactured in set values known as the E12 or E24 series.
E24 values (24 values)
 
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
  Colour codes for resistors
 
 
 
  E12 values (12 values)
 
1
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
 
 
   



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