Electrical Engineering Answers

. IF PC= 682 , AR=123 , DR=A2BF, IR= 5672, then execute the following

M[AR] DR

IR M[AR]

Determine the value of IR after the execution and comment on the type of addressing

Design an arithmetic circuit with one selection variable S and two n-bit data inputs A and B. The circuit generates the following four arithmetic operations in conjunction with the input carry Cin. Draw the logic diagram for the first two stages.

S Cin =0 Cin= 1 0 D = A + B (add) D = A + 1 (increment) 1 D = A - 1 (decrement) D = A + B’ + 1 (subtract) 

Starting from an initial value of R in Hex is B2 determine the sequence of binary values in R after a logical shift-left, followed by a circular shift-right, followed by a logical shift-right and a circular shift-left. explain through the proper diagrams. 

Show the hardware that implements the following statement. Include the logic gates for the control function and a block diagram for the binary counter with a count enable input.

xyT₀ + T₁ + y’ T₂: AR ç AR

The 8-bit registers R1, R2, R3, and R4 initially have the following values:

R1 - 1111 0010, R2- 11111111 , R3- 1011 1001 , R4-11101010 . Determine the 8-bit values in each register after the execution of the following sequence of microoperations. 1) R1 <-R1 + R2 , 2) R3<- R3 ^ R4, R2 <-  R2 + 1 , 3) R1 <- R1 – R3                                                                                                             

A common bus system which is capable of transferring 2 bits at time with number of registers are 4 each register is of 2 bit? Draw circuit diagram for this and also define how many multiplexers are required and what will be the size of multiplexer with truth table Also explain how to gather data from this bus back into register    

Starting from an initial value of R in Hex is A4 determine the sequence of binary values in R  after a logical shift-left, followed by a circular shift-right, followed by a logical shift-right and a circular shift-left. explain through the proper diagrams

Design a circuit that would be able to shift bits but also store them for a duration of time. Explain what are the technicalities of such a circuit. 

Consider a fused silica single-mode fiber that is 1 km long. Find the material dispersion component of the pulse spread if Delta lamda is 3.0 nm and the operating wavelengths are 800 nm, 900 nm, 1300 nm and 1500 nm.

Various resistors

R1 Brown-Red-Black-Silver

R2 Brown-Gray- Brown-Gold

R3 Brown-Black-Red-None

R4 Red-Red-Brown-Red

R5 Brown-Red-Red-Gold

Connect an impedance Z1 = (10,516+j6,571) ohms in series to V1 = 224<150 V to form the first branch and the second branch is Z2 = (11,031-j11,031) ohm in series to V2 = 248<350 V. The third branch has only impedance Z3 =(12,99+j7,5) ohms. These three branches are connected in parallel. (You may be required to calculate the values of inductance(L) or capacitance(C) if necessary.)

• Draw the circuit (5)

• Calculate the current flowing through each branch using superposition theorem

Explain any difference between the measured and the calculated values.