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Electrical Engineering

Opamp transfer function magnitude and phase

Consider the circuit. The opamp is ideal. Find the transfer function H(w)=Vo(w)/Vs(w). Find the magnitude and phase of H(w). Plot the magnitude (dB) and phase of H(w) on a Bode plot (vs log w). What type of filter is this? See attached file for full problem description.

Electrical Engineering - Transmission Lines

Distance and Voltage. See attached file for full problem description. 1. Given that r = alpha + j*beta show that alpha and beta are given by 2. A transmission line operating at 500 Mrad/s has l = 0.5 uH/m, c = 30.8 pf/m, g = 10^-4 omg-1/m, and r = 25 omg/m. a) calculate values for r, alpha, beta, v, lamda, and z0. b)

Logic Implementation Methods

See the attached file. 4.25 (Regular Logic Implementation Methods) You are to implement a combinational multiplier. It has two 2-bit inputs and a 4-bit output. The first 2-bit input is represented by the variables A, B; the second 2-bit input is represented by C, D. The outputs are W X, Y, Z, from the most-significant bit to

Poles of the Transfer Function

Skip (a). See attached file for full problem description. Part (b) only: Now assume that R1 = R2 = 2 kohms. Choose the values of C1 and C2 so that the transfer function has the poles indicated in figure (b) above.

Transfer function of 12.1a

See attached file for full problem description. Please do not sketch, just derive expression and determine the poles and zeros. 12.1 circuit (a) i) Derive an expression for the transfer function H(s) = V2(s) / V1(s) ii) Determine all of the poles and zeros of the transfer function.

V and I of the circuit

Refer to the following circuit: Assume ideal voltage sources. Find a) VBG ; b) I2 See attached file for full problem description. a) V(bg)= -3V; I2= -1A b) V(bg)= -2V; I2= 1A c) V(bg)= 3V; I2= 1A

To calculate emitter current for a P-N-P transistor.

A saturated NPN transistor has a base to emitter-applied voltage of 0.6V. The collector to emitter voltage is 0.2V. The collector current is 12 mA. The beta value of the transistor is 30. What is the emitter current? a) 2.5 mA b) Greater than 12 mA c) Cannot be determined by the information provided See attached file for

Software Engineer

Sample ideas about a software engineer are generated. See the attached file.

Recursive Filter Impulse Response

A recursive filter has the difference equation y[n]=-0.8y[n-1]+0.1y[n-2]+x[n] a. Find the impulse response for the filter? b. How many nonzero terms does the impulse response contain?

RLC Circuit

Please answer #3 only. You really don't have to derive the diff eq for the RLC circuit because we already know its of the form: s^2LC+sRC+1 =0, where v(t) = Ae^(st), dv/dt = sAe^(st) ... ** Please see the attached file for the full problem description ** In the above circuit, you may assume that i(0) = 0 and v(0) = 0

Calculate the Step Response

Number 2 Only. See attached file for full problem description. In the following circuit, all of the resistors R are identical, i1(t) is the input current and i2(t) is the output current. Calculate the step response of the system. i.e., calculate the output i2(t) when the input is a unit step function. Please express your ans

Signal Processing Problems

1. A stationary process X(t) has power spectral density given by (see attached) This process is applied to the input of an ideal bandpass filter with a bandwidth of 2 MHz centered at 50 MHz to produce an output process Y(t). (a) Evaluate the power content of X(t). (b) Evaluate the power spectral density of Y(t). (c) Evaluat

Transform a low pass filter into a band- pass filter

See attachment for full problem description Using this low pass filter: E1 is the input and E2 is the output. Using transformation, obtain a Band Pass filter with band center of 2000 rad/sec and bandwidth B of 200 rad/sec. Draw the final circuit will all values.

Queuing problem: Single server

(a) Consider a coffee counter with a single server at which tired students arrive according to a Poisson process. Let the mean arrival rate be two students per ten minutes and assume the serving time is exponentially distributed with an average of 180 seconds per student. 1. What is the average queue length? 2. How long does

Node Voltage Method to Derive Linear Equations

Problem 6.2 only See attached file for full problem description. In the following circuit, the nodes have been labeled for you and a reference node has been selected. a) Use the node-voltage method to derive a set of linear equations that could be used to solve for the unknown node voltages va, vb, and bc in the above figur

Proving two signals are orthogonal using MATLAB

Suppose we had two functions: (See attached) How would you show that these two functions are orthogonal using MATLAB? Also, verify that these two functions are orthogonal analytically: i.e., sketch the functions, their product and find the integral of their product.

Simplifying a Circuit

Simplify the following circuit. Line A goes into an INVERTER, then into a NAND Gate, then into an OR Gate, then travels into another NOR Gate. Line B travels into the same NAND Gate, then into the same OR Gate, then into the same NOR Gate. Now Line C goes into another INVERTER, then into an AND Gate, then into the same OR Gate a

Finding the Energy in a Capacitor and Inductor

7. What is the energy in joules stored in the capacitor below? The capacitor is shown with 10 volts on each side of it (plus on the left of the capacitor, - on the right), and C = 20 microfarads. 8. What is the energy in joules stored in the inductor shown below? There is a drawing of an inductor with 7 A flowing to the ri

Inductance of an inductor

What is the inductance of an inductor given: Air core 100 turns Cross-section area of core is 0.01 square meter Length is 0.1 meters

Net capacitance of a capacitor

1. What is the net capacitance of a capacitor given: Relative permitivity is 500 The area is one square meter The distance between the plates is 0.001 meters

Converting Complex Voltage to Polar Coordinates

I have a complex voltage = 10-j20. I am trying to convert it to polar coordinates with my Ti 89 but I keep getting my answers in arc tan. Can someone show me a way to restrict this answer within -pi and pi so I don't get any arc tan in my conversion.

Assembly Language

7. Assume that these registers contain the following: A = F0, B = 56, and R1 = 90. Perform the following operations. Indicate the result and the register where it is stored. Note: The operations are independent of each other. (a) ANL A, #45H (b) ORL A, B (c) XRL A, #76H (d) ANL A, R1 (e) XRL A, R1 (f) ORL A, R1 (g

Complex Number and Complex Conjugate

Complete only 3.6. See attached file for full problem description. Let z denote a complex variable z = x + jy = re^jt The complex conjugate of z is dentoed by z* and is given by z* = x - jy = re^-jt Derive each of the following relations, where z, z1 and z2 are arbitrary complex numbers: (a) zz* = r^2 (b) z/z* = e

Sinusoidal Functions: Example Problems

Problem 3.3 only. See attached file for full problem description. Problem 3.3 Obtain the expression in the standard form Xcos(wt + a) for the real sinusoidal function x(t) corresponding to each of the complex phasors given below. a) X = -2 + j2 b) X = 1/(-2 + j2) c) X = (1 + j)^5

Derived Thevenin Expression

In the circuit below, no current is drawn from the output terminals. a. Derive an expression for the total impedance Zt across the input terminals A and B. Hence derive an expression for the current i. Write the expression in the form: [R + jX] b.(1) Derive an expression for the frequency at which the current (i) is in phase w

Sequence generator circuit using JKs.

The circuit outputs at the start are set to Qa=Qb=Qc='0'. C is the MSB ant the output number at the start is therefore 0. Assume that each JK has a zero propagation delay. Draw all the output waveforms, determine the sequence of output numbers produced by the JKs for eack clock cycle. See attached file for full problem