00:01
Hey there, welcome to numerary.
00:02
We here are asked to find v null in the network.
00:07
So for this, we are going to be starting out by defining the controlling voltages.
00:13
So we have v -subscript x, denoting as voltage across the 4 -ooms resistor, resistor, and then for v -a, this will represent the voltage across the 2 oms resistor.
00:53
All right, now we're going to write the kvl around the loop.
00:59
So this is kvl around loop.
01:07
And this here we are defining.
01:13
So for the kvl around the loop, we are looking at 12 volts minus 4i, minus 4 vx, minus 2i, minus 2va, equals to 0.
01:33
So we can go ahead and substitute here...