00:01
In this problem we have been given a circuit and we need to calculate the voltage across the 200 oom register as shown.
00:08
So first let us look at the circuit given to us.
00:11
So this is the circuit.
00:12
Here we can clearly see that 5 -o and 5 -o -resistors are there and then 200 -oom registers are there and so on.
00:20
So now let us see how we can calculate this very problem.
00:24
So assuming node b to be reference node that is vb is equal to 0.
00:30
So, firstly, we need to name some points here that this is va, this is my vb, and then here it will be what else, okay, that's enough.
00:41
So if we name them as such, then we are taking vb as our node, that is reference point.
00:47
So from here, we can say that assuming current in direction soon.
00:52
So we are going to show the directions like this, and then over here we have like one direction over here and then here it will be like this and then we have a one direction as so what kind of directions will be there over here so it will be like this so if we assume that current is going through the circuit in this way then we can apply nodal analysis at a so nodal analysis at a can be written as it will be very helpful to solve this problem because this problem is entirely based on the nodal analysis on so we can say that it will be va minus 0, that is va minus vb, over 200 om.
01:33
And this will be in summation with va minus 360 minus 0 over in the denominator, it will be 20.
01:43
So here it will be equals to 40 minus va over how much it is? it is 80.
01:50
And then here it will be 80 minus va over 70.
01:55
So just look into the circuit once and look into that nodal.
01:58
Analyzes once...