(a) Use nodal analysis to find the voltage Vo (b) Calculate the power of the dependent and independent current sources. (c) Verify that the total power supplied equals the total power absorbed for the circuit. (d) Use Mathematica to calculate all of the essential node voltages for this problem (if you have not already done so). Next, use Ohm's Law plus the essential node voltages to calculate the numerical value of the current through each resistor. Is KCL satisfied at each essential node? (Note: Calculating the power of each element is one way to check your work Checking KCL numerically at each node is an alternate way. If KCL does not balance at every node, check your equations for errors!) (e) Assume a finite resistance is placed in series with the 40 mA current source. What effect will this resistance have on the value of Vo? In your own words, explain the reason for this. (1) If a 50 resistor is connected in series with the 40 mA current source, calculate the powers of both sources. '19 201 -13 www 80 + Vo www 25 40 mA