00:01
Okay, so if we look at the diagram on the right, we start from this one and that's the initial setup of the circuit.
00:09
And then if we start from the extreme right side, we see that these three resistors are in series connection.
00:18
So if we try to find the equivalent resistance of that, it's going to be 3r.
00:24
So this circuit is transferred to this and that's the equivalent resistance that we can find.
00:32
Since it's a series connection, it's three times r.
00:35
Now from there, we know that, again, we are going from the left, from the right.
00:42
So these two are in parallel connection.
00:45
So we need to find the equivalent resistance for them.
00:48
So let's call it req1.
00:52
So we are trying to find the equivalent resistance of this part...