Multiple choice

A two port network is represented by ABCD parameters given by $\left[ \begin{array} \ V_1 \\ I_1 \end{array} \right] $$\left[ \begin{array} \ A & B\\ C & D \end{array} \right] $$\left[ \begin{array} \ V_2 \\ -I_2 \end{array} \right] $ If port-2 is terminated by RL, the input impedance seen at port-1 is given by

  1. $\dfrac{A + BR_L}{C + DR_L}$
  2. $\dfrac{AR_L + C}{BR_L + D}$
  3. $\dfrac{DR_L + A}{BR_L + C}$
  4. $\dfrac{B + AR_L}{D + CR_L}$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 

Keep practicing — related questions