ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #1 In the circuit given below, solve for the Thevenin equivalent circuit looking into the terminals A and B: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #2 In the given circuit, assume that the capacitors are initially uncharged and that the current source has been connected to the circuit long enough for all the capacitors to reach steady state (no current flowing through the capacitors). Find the voltage across each capacitor. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #3 For the circuit given below: A) B) C) D) Find the voltage VC Find the current IL Find the Energy stored in the inductor Find the Energy stored in the capacitor ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #4 Calculate the value of R that will make the energy stored in the capacitor the same as that stored in the inductor under dc conditions. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #5 Determine IL (to be clear find, IL(0) position A, IL(∞) position B, Tao and the complete solution with the transient). ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #6 In the given circuit, find the unknown quantities of IL(t) for t > 0 if i(0) = 8 A. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #7 The circuit is used by the engineering club to celebrate the holiday. They noticed Santa Frog waved his sign a little when the switch was closed but waved it violently for 8s when the switch was opened. Model the Santa Frog as a resistor and calculate his resistance. Assume that it takes 10 mA for Santa Frog to wave his sign violently: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #8 Determine the value of IL(t) and the total energy dissipated by the circuit from t = 0 s to t = ∞ s. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #9 In the circuit given below, a) Find v(0+) and i(0+) b) Find dv(0+)/dt and di(0+)/dt c) Find v(∞) and i(∞) ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #10 Use nodal analysis to find the voltages at nodes a, b, c, and d. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #11 Calculate the gain vo/vi of the bridge driven instrumentation amplifier shown below: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #12 Find v(t) for t > 0 ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #13 The charge entering the positive terminal of an element is q = 8 sin(4πt) mC, while the voltage across the element (plus to minus) is v = 3 cos(4πt) V. Find the power delivered to the element at t = 0.3 s. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #14 In the given circuit, determine the currents i1, i2, and i3. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #15 For the circuit below, determine the value of R such that the maximum power delivered to the load is 11 mW: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #16 Given the following circuit, using superposition determine the contribution of each input V1 - V4 to the output voltage Vo. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #17 Determine the equivalent single inductance Leq that can be used to represent the inductive network between the terminals a and b: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #18 Find the Thevenin and Norton equivalents of the circuit at terminals A and B. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #19 Find V for all time i.e., v(t) ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #20 Calculate i(t) for t > 0: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #21 Suppose in the back of the lab you find large quantities of standard resistors with the following markings, use a minimum number of these resistors in series and parallel combinations to obtain a 59.1474Ω equivalent resistance for an electronic circuit design. ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #22 Calculate the current Ix in the circuit: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #23 Using two op amps, two 5kΩ and three 10kΩ resistors, design a voltage subtractor: ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #24 Calculate the voltage gain for the op amp circuit given below, ENGR 210 Electrical Network Analysis Final Exam Dr. Nunally – Fall 2022 SHOW YOUR WORK FOR EVERY QUESTION! QUESTION #25 In the circuit given below, find i(t) and v(t) for t > 0:
