Q:  In the given circuit, determine the value of Vo.

Solution:

By applying KCL at node 1

                                    (V₁/10k) = 3mA - 2 I_x

                                            I_x = (V₁/10k)  // from the circuit

Put this value in the equation of node 1

                                                V₁/10k = I_x=3mA -2I_x

                                            I_x = 1mA

Now by applying KCL at node 2

                                    (V₂/10k) = 2I_x

                                    (V₂/10k) = 2 (1mA)

                                     V₂ = 20 V = V_O