V and 50 Hz source is connected to a transformer with rns and 2500 turn on the primary and secondary side respectively. A load is connected across the secondary which draws 3 A current at a power factor of 0.7 lagging. a) What will the current on the primary side. b) What is the Instantaneous current at the primary when the instantaneous current at secondary is 100 mA? c) What is the peak flux linked on secondary winding? d) Draw the phasor diagram

1.37. An important concept in many communications applications is the correlation be- tween two signals. In the problems at the end of Chapter 2, we will have more to say about this topic and will provide some indication of how it is used in practice. For now, we content ourselves with a brief introduction to correlation functions and some of their properties. Let x(t) and y(1) be two signals; then the correlation function is defined as - L. b1,(1) = x(1 + T)y(7)dT. The function ,u(1) is usually referred to as the autocorrelation function of the signal x(t), while oy(t) is often called a cross-correlation function. (a) What is the relationship between 4,y(1) and øy»(1)? (b) Compute the odd part of øx:(1). (c) Suppose that y(t) = x(t + T). Express ,,(1) and Þyy(1) in terms of p«(1).

Explain the maths

Q2: Answer the following: A. A sequential network has one input (X) and two outputs (Z1 and Z2). An output Z₁ = 1 occurs every time the input sequence 1011 is completed provided that the sequence 0101 has never occurred. An output Z2 occurs every time the input 0101 is completed. Note that once a Z₂ =1 output has occurred, Z1 =1 can never occur, but not vice versa. Find Mealy state graph. B. Sketch the state diagram to implement a Mealy sequential circuit which investigates a single input sequence X and will produce a single output of Z = 1 whenever the total number of 0's in the sequence is odd provided that the sequence 01 has occurred at least once.