2. (a) (2 pt) Consider the TSPC circuit and the input waveforms as shown below, sketch the waveforms of X, Y, Q and Q' to verify that there is no race (i. e., input D directly override output Q) and determine the type of circuit (positive, negative, latch, clocked latch, flip-flop, etc.). (b) (1 pt) Redraw the circuit so that the output Q changes on the opposite edge of a clock (i. e., if this circuit's output changes on a falling clock edge find one that changes on a rising edge).
Q1. The circuit below has I = 0.5 mA, VA = 30 V, and β = 150. (a) Specify what is this circuit? (b) Find Gm, Ro, Ad and Rid. (c) (b) If the bias-current source is implemented with a simple npn current mirror, find REE, Acap and CMRR. (d) If the amplifier is fed differentially with a source having a total of 20 kΩ resistance (i.e. 10 kQ in series with the base lead of each of Q1 and Q2), find the overall differential voltage gain.
Find the values of base, collector, and emitter currents in Q1 and Q2 for the circuit shown in Fig. 2(a). Assume, β = 80 and VBE = 0.7 V.
Two long thin rods having charge density λ0x and −λ0x (where x is the distance from their respective centres C1 and C2) are placed close and parallel to each other in such a way that distance between their centres is a. Find out the electric field intensity at a point P distant r from this system. (k = 1/4π∈0)
B5. The figure shows two stationary charges: +3.0 μC located at (2.0 cm, 0) and +3.0 μC located at (0, 2.0 cm). Consider a point P located at the origin (0, 0). Note: 1 μC = 1 x10−6 C. (a) Calculate the electric potential at P. Hint: You should get +2.7 x106 J/C (b) Calculate the electric field (magnitude and direction) at P. Hint: For the magnitude, you should get 9.546×107 N/C Consider placing a test charge Qtest = −2.0 μC at P. (c) Calculate the electric potential energy of the charge Qtest at P. Hint: Use the result from part (a). (d) Calculate the electric force on the charge Qtest at P (magnitude and direction). Hint: Use the result from part (b).