00:01
Hello students, in this problem we want to find the thevenin's equivalent circuit and northern's equivalent circuit.
00:07
This is the given circuit.
00:09
For thevenin's equivalent, we want to open circuit source and short circuit voltage source to get rth.
00:25
That is, then rth equal to 6 plus j4 into minus j2 divided by j4 minus j2, which is equal to 6 plus j square 8 divided by j square.
00:50
That is, rth equal to 6 minus j4.
00:59
That is, rth equal to 7 .211 minus 33 .69 degree.
01:09
Next, we want to find the vth.
01:13
Here, vth equal to voc.
01:18
That is, vth equal to 20 into 6 plus j4 into minus j2 divided by j2, which is equal to 206 minus j4.
01:39
That is equal to 20 into root of 6 square plus 4 square, angled tan inverse 4 by 6.
01:50
That is, vth equal to 14 .42 angled minus 33 .69 degree.
02:02
Now, thevenin's equivalent circuit can be drawn as, this is the thevenin's equivalent circuit.
02:08
Now, we want to find northern's equivalent circuit.
02:11
We can easily get northern's equivalent circuit if we know thevenin's equivalent...