00:01
This problem is just a matter of simplifying a circuit that has several branches in it in parallel and in series, and it looks rather a mess because there's a couple of diagonal branches.
00:13
But it really is a matter of simplifying how they branch out.
00:19
We'll remember as we go through that resistance for parallel circuit is the reciprocal of the sum of the reciprocal.
00:31
And then we'll take a look at that nest of branches over there on the right -hand side, where we have a 5 -kiloom resistor, and then here we have actually, and i'm going to draw them in a slightly different way, just so it's a little more clear, even though my resistors don't make it look very clear.
00:56
Those are kind of messy.
00:57
But we can think of it this way.
01:00
Here's four, here's three, and here's three.
01:09
All going back that way.
01:12
And then here's six over there.
01:14
And so we can treat each of these as though they are in parallel with each other.
01:20
Here, of course, we're going to just add those up...