Resistor Color code

Instructions:

Requirements

• Java is required and a link should appear if you do not already have Java installed. Use this link to get started. With Java installed, the resistor tool should load up automatically.


• Selecting a value
  Click on just about any colored box to change the value for the displayed resistor. Each color table can be used to select a value for the indicated color band.


• Invalid color values
  If you select and invalid set of colors the resistor value and code fields will show Invalid. Note that the valid values table shows all the possible values for the first two bands and changes based on the selected tolerance.


• Common Values
  Click on one of these common resistor values to quickly show the colors for that value.


• Valid Values
  Click on one of the valid values for the first two code digits. This table will help you find the closest valid value when your calculating a resistor for some project.

mayscript=&quottrue" scriptable=&quottrue" image=&quothttp://www.uchobby.com/java/Resistor/loading.gif" boxmessage=&quotLoading Processing software…" boxbgcolor="#FFFFFF" />

Read more...

Now, We can control

we can conclude all previous by discussing the following :

what is the voltage , what is the current and what is the "Resistors" (our first component ).

But now, we will start to control the voltage and current as we discussed before .

this topic will be divide into two section

1. How to control "voltage" (By Resistors Only) ==> Resistors Series connection

simply, if we have to "Resistors" connected in series (see fig R.1) , each resistance between two nodes ( called "node " in circuits) .

fig R.1

voltage is measured between two points as we know, here we can divide voltage into two components , each resistance have a specific voltages between its terminals . (see fig R.2)

fig R.2

of course , current will not change , here we can change only voltage by changing values or nombers of this resistances .

We will back Sooooooon

Read more...