00:01
In the question, the lossless transmission line has z equals to 50 ohms.
00:09
So this is the resistance.
00:11
The length is given as 30 meters and the frequency is given as 2 megahertz.
00:30
And the loading is given by zl equals to 60 plus j40 ohms.
00:42
Also we have been given the voltage as 0 .60.
00:46
So we have to determine first the reflection coefficient and its angle and secondly the standing wave ratio and lastly the input impedance.
01:26
So let's start with the solution.
01:42
The reflection coefficient is given by the formula as the reflection coefficient equals to zl minus z naught whole divided by zl plus z naught.
02:03
Okay.
02:04
Where zl is the load impedance and z naught is the characteristic impedance of transmission line.
02:10
So the value of zl is actually given by under root of 60 square plus 40 square which would be equal to 72 .11 ohms.
02:29
Okay.
02:30
So this is the angle and the angle is arc of tan which is equals to 40 divided by 60 which is equals to 33 .69 degrees.
02:45
So this would be equal to 72 .11 minus and with angle of this minus 50 whole divided by 72 .11 angle of 33 .69 plus of 50...