1. In the following graph, the number of trees (P) and the number of cut-sets (Q) are

a) P = 2, Q = 2

b) P = 2, Q = 6

c) P = 4, Q = 6

d) P = 4, Q = 10

2. In the following cirucit, the switch S is closed at t = 0. The rate of change of current di(0

^{+})/dt is given by

**Solution:**https://www.youtube.com/watch?v=WiYzbTZyhi0

3. The Thevenin equivalent impedance Z

_{TH}between the nodes P and Q in the following circuit is

**Solution:**https://www.youtube.com/watch?v=vl6exaG9eY0

4. The driving point impedance of the following network is given as shown. The component values are

**Solution:**https://www.youtube.com/watch?v=CI2Na_stYRg

**Common Data Questions: 5 & 6**

The following series RLC circuit with zero initial conditions is excited by a unit impulse function δ(t).

5. For t > 0, the output voltage V

_{c}(t) is

**Solution:**https://www.youtube.com/watch?v=DB4jmdoaFIk

6. For t > 0, the voltage across the resistor is

**Solution:**https://www.youtube.com/watch?v=nn6PggFjKgA

**Statement for Linked Answer Questions: 7 & 8**

A two port network shown below is excited by external DC sources. The voltages and the currents are measured with voltmeters V

_{1}, V

_{2}and ammeters A

_{1}, A

_{2}(all assumed to be ideal), as indicated. Under following switch conditions, the readings obtained are:

7. The Z-parameter matrix for this network is

8. The h-parameter network for this network is

**Solution (7 & 8):**https://www.youtube.com/watch?v=_-paorTBZZg