Types of connections


Obviously you know the two types of connections, we've got a series connection and a parallel connection and again within a parallel connection we still have another parallel connection so I just want you to pay attention to this and you'll realize what I mean when I say I've got two types of connections because it might look as if we've got just one type of connection which is parallel. So, I've tried to draw that diagram in different colors. 

So we've got this part which is drawn in black which represents the external part of the circuit and from that point, from that point and that point there, this is where you've got a parallel connection okay. So within this parallel connection, you still have a branch there which is a parallel connection okay. So that parallel connection is connected in series with that 20 ohms. Okay so remember guys at all times when you've got a parallel connection you can combine it or convert it from parallel to series. 

You already know the formula to convert a parallel connection and convert it into a series connection so guys let me just draw this part, let me just draw this part and do this and do that I just want to show you how it looks like when it's being converted. What else have we got okay something there we've got R and then I've got A2 there and it goes like that okay, I just want us to concentrate on that portion there.

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