2. Determine the transfer function of the circuit.

The relation between analog frequency 'F' and digital frequency 'f is? a) F=f*T(where T is sampling period) b) f=F*T c) No relation d) None of the mentioned

04.) For the small signal circuit below, use Thevenin analysis to determine an expression for the output resistance ( Ru ). Note that "g" represents the gain for the current source. Rout RA -VA - VA + Vo gVA Vs S. 05.) For the small signal circuit below, use Thevenin analysis to determine an expression for the input resistance ( R, ). Note that "g" represents the gain for the current source. Rc Rin RB VB gVB |

To achieve 75 percent modulation of a carrier of Vc = 50 V, what amplitude of the modulating signal Vm is needed? (Our lesson is AMPLITUDE MODULATION FUNDAMENTALS)

1.  Kindly determine its transfer function, C/R, using Block Diagram Reduction and Block Diagram Algebra.2.  Kindly convert it into an equivalent Signal Flow Graph and compute its error ratio, E/R, using Mason’s GainFormula.

3. Given signal flow graph determine a) the transfer function Td(s) to Y(s) b) simplest equivalent system block diagram. Ans. Td(s) G(s) Signal Flow Diagram Y(s)

Figure 1 shows the transfer curve of a network with an unknown channel Junction Field Effect Transistor (JFET). (i) Identify the channel of the JFET; justify your answer. (ii) Given the supply voltage of 16 ?, design a voltage divider network using the JFET in (i) above. Take R1 = 1400RS; R2 = 180RS; and VD = 10 V. Please use the nearest standard resistor values. (iii) With the obtained standard resistance values in (ii) above, determine the new IDQ and VGSQ, using the mathematical approach only.