So I have seen a lot of people asking where is a good place to learn about electronics. I think it is about time that someone made an instructable about it. In this instructable I will cover some of the main electronics components, their uses and what they look like in schematics. I would like to request the members who are good with electronics to help out; if I missed a component, tell me I missed it, if I got some information wrong, tell me, please.
Note: I am by no means an expert, but I consider my knowledge (and the knowledge of the instructables community at large) sufficient enough to educate those who wish to be educated.
Step 1: Resistors
Resistors are simple: they limit the amount of current allowed through a circuit. Resistors are color coded to make it easier, and can have four, five, or six colored bands. Resistors are measured in Ohms.
To find the resistance of the four-band resistor:
look at the resistor, make sure the side that has a silver or gold is to the right (there might not be a band with one of these colors, make sure the side that has no band is to the right).
now you simply read it.
write down the first value
write down the second value
the third number tells you how many 0's to add to the number
the fourth number tells you the tolerance.
In the picture the resistor is red green red gold, so that would be 2500-5%. This means that it is 2500 Ohm's and has a tolerance of 5%.