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For the feedback voltage amplifier let the op amp have an infinite input resistance, a zero output resistance, and a finite open-loop gain A = 10^4 V/V. If R1 = 1 kOhms, find the value of R2 that r
Consider this follower to be driven by the output of a differential amplifier of gain 100 whose positive-input terminal is connected to the input signal source vs and whose negative-input terminal i
A capacity coupled amplifier has a midband gain of 1000 V/V, a single high-frequency pole at 10 kHz, and a single low-frequency pole at 100 Hz. Negative feedback is employed so that the midband gain
A power amplifier employs an output stage whose gain varies from 2 to 12 for various reasons. What is the gain of an ideal (non varying) amplifier connected to drive It so that an overall gain with
A power amplifier employs an output stage whose gam vanes from 2 to 12 for various reasons. What is the gain of an ideal (non varying) amplIfier connected to drive it so that an overall gain with fe
In n-channel JFET, Ohmic region is separated from Saturation region by VP so called Pich-off voltage or VGS(OFF). What is the value if IDand VGS at this location and how we can calculate the value o
Two parallel connected 10 kV to 120 V 60 Hz single phase transformers supply a varying load. Assuming 0.85 PF, what is the maximum load current that can be supplied by this parallel combination of tr
A 120 kVA transformer is to be parallelled to a 60 kVA transformer. Each transformer has rated voltages of 10kV-120V at 60Hz. When supplying a 250A load at 0.85 PF, what is the total input current and
The function f(t) is given as f(t) = [cost] -infinity < t < infinity The brackets around the cost were straight lines up/down, not sure if means absolute value or what. Find the complex exponent
Determine the periods and find exponential fourier series coeffecients of functions. A.) f(t) = 2(cost)(cos2t) B.) g(t) = 3 + 2e^-j2t + 2e^j2t + 2cos4t C.) h(t) = 4
A common-emitter amplifier with an emitter resistance RE, but without an emitter by-pass capacitor CE is good for high input resistance, common-emitter amplifier using an emitter by- pass capacitor
Suppose you are driving inside a tunnel. Assume that each of the two tunnels is 22ft wide and 13.5 ft tall. 1. Can you receive an AM radio signal in an automobile 2. Also determine weather FM signals
An automatic automotive spray painting system consists of conveyors, spraying, dust and overspray extraction fans with electrostatic and water walls, finishing with baking ovens. This system is connec
Explain the relationship between the input and the output ac signals for a n-channel BJT voltage-divider bias. What components/parameters does the voltage gain depends on
Determine the transfer function of the second-order (2 poles) lowpass Butterworth filter with a 3 -dB cutoff frequency of 5 kHz. Design it using the Sallen-key Lowpass filter configuration, find all
what is the conversion efficiency of an amplifier in which the effective value of the current through a 2.2k ohms load is 5 mA and the drain on the 18-V dc supply is 3.8mA. What will happen to the o
consider the dual circuit where the value of the inductor is L=1H, the initial current in the inductor is iL(0)=-1amps, and the input is the source vs(t). Let vs(t)=u(t)=u(t-1). Plot the correspondi
BJT can be used as a switching network. In this case, Q-Point jumps from one extreme of Dc Load Line to the other creating Saturation and cutoff conditions. What components in the configuration assu
A continuos-time system is given as a differential equation: y''(t)+2y'(t)+3y(t)=x'(t)+x(t-2) a. Compute the Transfer function H(s) of the system. b. Compute the Impulse Response h(t). c. Compute the
A 415V 50 Hz three phase supply has been divided into three balanced loads, as follows: LOAD 1 (STAR): 15 kVA at a power factor of 0.60 lagging; LOAD 2 (DELTA): 24 kW at a power factor of 0.55 lagging
Two parallel connected 10 kV to 120 V 60 Hz single phase transformers supply a varying load. When the total secondary load current is 250 A at 0.85 PF lagging, determine the secondary current and ope
Consider the following signal w(t) = 4sinc(400*t) a) What is the minimum sampling rate that can be used to obtain samples that completely specify the signal w(t)
A DT system has the unit pulse response h[nT] = (0.4)^-|n|. Find and plot the system zero-state response to the input signal x[nT] = u[(n+2)T] + u[(u-2)T]
a) Plot the spectrum and the normalized spectrum of x[nT] = 2cos(20*pi*n*T + pi/8) + 4cos(40*pi*n*T + pi/8) for T = 0.01 b) Plot the spectrum and the normalized spectrum of
What is the minimum sampling rate that can be used to obtain samples that completely specify the following signalx(t) = 10cos(20*pi*t) - 5cos(100*pi*t) + 20cos(400*pi*t)