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To calculate the decrease in bandwidth of a n-stage amplifier in comparison to a single-stage one, the -3 dB high and low frequencies are needed. Derive a formula for the low-frequency cutoff of a n-stage amplifier, if the single-stage low-frequency cutoff is fl hertz.
Draw the phasor diagrams associated with under-excited and over-excited synchronous motors and show the power factor of operation associated with each.
A material with a bulk resistivity of p = 120 Om is to be used to manufacture a 75 kO resistor that must dissipate P = 80 W of power. The maximum allowable current density for this material is J = 120 A/m2.
Design a UV flip-flop using a JK flip-flop and two logic gates. where the characteristic table for the UV flip flop is U V Q(t+1) 0 0 1 0 1 !Q(t) 1 0 Q(t) 1 1 Q(t)
If a 250 us period clock signal must be transmitted with a 10 kHz data signal on the same link, then what is the minimum bandwidth necessary to support both signals.
A) the required step-up voltage ratio for satisfactory performance. B) the voltage ratio of a standard buck-boost transformer that most closely meets the requirements of the load. C) the voltage at the load with the buck-boost transformer installed.
To obtain an understanding of the effects that post-heating treatments will have on some mechanical properties of engineering materials and alloys which have been previously work-hardened.
A resistor of 3 k, a 0.05 F capacitor, and a 120 mH coil are in series across a 5 kHz, 20 V ac source. - What is the impedance, expressed in polar form?
A straight conducting wire of radius α isparallel to and at height h from the surface of the earth. Assuming that the earth is perfectly conducting, determine the capacitance and the force per unit length between the wire and the earth.
For the system below, assume a three phase-ground fault on bus 3 with the fault impedance of j0.005: Find the admittance matrix. Find all the fault currents, including the generators
On the schematic shown below, two voltages and two currents are given.Find all of the other voltages and write them in the rectangles next to the resistors.
The maximum voltage that James can apply to this capacitor is limited by Vmax = Kd, where K is the breakdown strengh of the dielectric. deriven an expression for the maximum energy that can be stored in this capacitor in terms of K and the volume ..
Given series circuit and parallel circuit consisting of a 100 ohm resistor and a 10 μF capacitor (100 mH inductor-parallel) and a v(t)= 50sin(1000t+0degree) V source, what is the RMS phasor voltage across the resistor for a series circuit
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