Question

If you are monitoring the input (point A ) to a transmission line with a DC source (i.e. B with internal Zs=Z0 and switch connected (like the book) and your scope at point A (i) transmission) shows the voltage goes up to 1 V at time t1 (can be treated as t=0 ) and t reduces to 0.75 V after a given time t2:

Sketch the signal and the circuit: I will check this if you want:

a. Assuming a source Zs=50Ωohm and Zo=50ΩohmT/L impedance what is th impedance connected to the transmission line i.e. (point B ) ZB= ______Ω

Answer 1

The impedance connected to the transmission line (point B) is 50 Ω.

Step-by-step explanation:

The impedance connected to the transmission line (point B) can be calculated using the formula ZB = Zo L / C, where Zo is the characteristic impedance of the transmission line, L is the inductance, and C is the capacitance.

In this case, the book states that Zo = 50 Ω, which is also the source impedance Zs. So, ZB = Zs = 50 Ω.