Create a circuit that allows the client to add numbers one by one into a register file (8 four-bit registers) by inputting: 1) the number itsself 2) the memory location The circuit can be logic gates OR verilog code. whichever you prefer! Thank you and I will rate!

1. Determine the stability region using the Schur-Cohn criterion for a system whose characteristic equation P(z).

   ?(?) = ?^3 + 0.5?^2 + ? = 0

2. A capacitor consists of two metal plates, each 200mm by 300mm, spaced 9mm apart. The spaced between the metal plates is filled with mica 6mm thick and a layer of paper 3mm thick. The relative permittivity of the mica and paper are 9 and 6 respectively. Calculate: the i. capacitance and ii. electric field strength in each dielectric in kV/mm due to a pd of 10kV between the metal plates.

1. Determine forced and natural response for the following equation, where y[-1] =1, y[-2]=1 and x[n] = delta[n].

y[n]+1/2 y[n-1] -1/4 y[n-2] = x[n]

2. find the impulse response of the system described below

y[n]=1/2 y[n-1] + 2x[n]  

1. What is the need of a sub-station in the power system ?

2. Why are pole-mounted sub-stations very popular ?

3. Where we erect a terminal sub-station ?

4. Why do we use isolators on both sides of circuit breaker ?

5. What is the utility of instrument transformers in sub-stations ?

Two induction coils are wound on the same form as shown in Figure 8. Explain what the symbols L1, L2, M refer to, and explain the significance black dots shown. [5 marks] Figure 8: Self-inductances and mutual inductance  

(10) Band gap of a semiconductor cannot be tailored by (   )

(A) Lattice-matched epitaxy

(B) Formation of quantum well

(C) Strained-layer epitaxy

(D) Alloying

5) Solve the linear difference equation: ?(? + 2) − 4?(? + 1) + 3?(?) = 2 ??(?)

Given the initial conditions: ?(0) = 1 , ?(1) = 2

The volumetric charge density in a cylinder with a radius of infinite length changes from the axis to ?? = ??. Here k is a constant. Find the electric field inside (r <a) and outside   (r> a) of the cylinder.

Consider a silicon crystal whose band gap energy is Eg=1.124eVE_g = 1.124 eVEg​=1.124eV and is kept at T=300KT = 300 KT=300K.

If the Fermi level, EFE_FEF​, is located at precisely the middle of the band gap, what is the probability of finding an electron (or equivalently the probability of a state being occupied) at E=EC+kBTE = E_C + k_BTE=EC​+kB​T?

1. A 350-KVA 2300  230; volt, 60-hz transformer has percent core loss, resistance and percent leakage reactance of 0.56 , 33 and 5.57 respectively. For 10 degree increments of power-factor angle, tabulate and plot percent regulation, and efficiency. Power factor for operation between 0.5 lagging and 0.5 leading.