BEE ASSIGNMENT-2

SPHOORTHY ENGINEERING COLLEGE    

  Sphoorthy Engineering College caters to its mission providing the best infrastructure     quality education and overall personality development within the campus.                                          

    BEE

                  NOTE:  Submit the assignment on or before 22-08-2012.

                                                    ASSIGNMENT-2

1. (a) derive the effective capacitance formulae when capacitances are connected in series and parallel

(b) Find the single equivalent resistance between A and B in the circuit shown below by network reduction techniques.

                  for circuit diagram  Please go through Hard copy

(c).determine the current delivered by the source in the circuit shown below.

                      for circuit diagram  Please go through Hard copy

2.  (a) Write short notes on star – delta transformation. If Rab, Rbc and Rca are connected in delta, derive the expressions for equivalent star connection

      (b) Three resistances are connected in star, determine its equivalent delta configuration.

3.    (a) State and explain Superposition theorem.

       (b) Using superposition theorem determine the current through 12 Ω resistor

(All resistances are in Ω) as shown in figure.

4. (a) State and explain Thevenin's theorem. Explain significance of Thevenin’s theorem on network theory

    (b) By using Thevenin’s theorem determine the current through 5 Ω resistor (All resistances are in Ω) as shown in figure.

                    for circuit diagram  Please go through Hard copy

5. (a).State and explain Norton’s theorem

   (b) Find the voltage V across the 12 Ω resistance using Norton’s theorem for the circuit shown in below

6. (a) State and explain Maximum Power Transfer theorem.
   (b) Calculate the value of load resistor RL to be connected across terminals A and B which would draw the maximum power from the circuit and also find the maximum power in the circuit shown below.