Chapter 8, Problem 1RP

".I need the correct answers with explanations" Answer True or False and correct errors if found 1. In a certain Op-Amp. if Ad-3500, Ac-0.35, the CMRR=100dB. 2. The voltage series feedback can increase both input and output impedances. 3. A two-pole Sallen-Key high-pass filter contains one capacitor and two resistors. 4. The main feature of a crystal oscillator is the high frequency operation. Each transistor in a class B power amplifier conducts for the entire input cycle. The Q-point must be centered on the load line for maximum class A output signal swing. 7. The differentiator Op-Amp can convert the triangle waveform into sinewave. Class AB power amplifier eliminates crossover distortion found in pure class A. 9. Wien-bridge oscillators are based on positive feedback circuits. 10. The band-reject filter is composed of multiplication of LPF and HPF.

".I need the correct answers with explanations" Pick up the correct answer 1. Station that contain boiler is: A. hydro station B. Diesel station 2. Taking into account cost, most of the D. All of them C. Steam power station high-voltage transmission lines are OC. Either of the above D. None of the ab 3. If the maximum load is equal to plant capacity. The plant capacity factor is: A. Underground. B. Overhead C. >1 D. <1 A. 1 4. Five photocells are connected in parallel, 2V for each cell. The output voltage is A.2.5 V B. zero B. 10 V C.2V) D. 5 V 5. Sum of continuous ratings of all the equipment connected to electric power system is defined as: A. Maximum demand B. Connected load C. Daily average load D. Load variation 6. Cables have more effective in.............. than over head transmission lines B. Capacitance C. Resistance D. All of the abov A. Inductance 7. By which of the following methods string efficiency can be equal. 100% A. Using a guard ring B. Equal insulator voltage C.…

Q3/A unity-feedback system with the forward transfer function G(S)= K S(S+7) is operating with a closed-loop step response that has 15% overshoot. Do the following: a. Evaluate the steady-state error for a unit ramp input. b. Design a lag compensator to improve the steady-state error by a factor of 20 to get a new dominant closed-loop poles S-3.4+ j5.63. place the pole of the lag compensator at s=-0.01 c. Design a lag compensator using OP amp if R1= 100KS2 R2=10 KS2 and R3= 10K