Figure 3 (b) is the Miller equivalent circuit of Figure 3 (a). Derive a relationship between the capacitances Ci, C2 and C and state the main hypothesis for the valıdity of the theorem. (a) Figure 3 (a) Figure 3 (b)

Consider the following circuit with Vs(t) = 2.0 + 0.02 sin(2 pi t) V,R1 = R2 = 25ohms Idc = 1mA, Vdc = 5V. Assume Vy = 0.7V and VT = 25mV.a) Draw the equivalent circuit under DCb) Determine the DC voltage and current through the diode.c) Draw the equivalent circuit under acd) Determine the total current through the diode

Calculate the total current of a circuit with a 9.5 V voltage source connected in series with a directly biased silicon diode and a series resistor of 440 Ω. Consider the second approximation of the diode where it is considered to be connected to a battery in series. Units of the response in milli amperes.   Note: I put the original exercise in Spanish, so that it is better understood. Explain step by step, please.