GATE Electrical 2012 | Question: 50

Question

With $10$ V dc connected at port A in the linear nonreciprocal two-port network shown below, the following were observed:

1. $1 \: \Omega$ connected at port B draws a current of $3$ A
2. $2.5 \: \Omega$ connected at port B draws a current of $2$ A

For the same network, with $6$ V dc connected at port A, $1 \: \Omega$ connected at port B draws $7/3$ A. If $8$ V dc is connected to port A, the open circuit voltage at port B is

• A. $6$ V
• B. $7$ V
• C. $8$ V
• D. $9$ V