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A 110-V rms, 60-Hz source is applied to impedance Z. The apparent power entering the load is 120 VA at a power factor of0.707 lagging.(a) Calculate the complex power.(b) Find the rms current supplied to the load.(c) Determine Z.(d)Assuming that Z=R+jωL, find the values of R andL.
Consider an InGaAs APD with excess noise x=0.7, M=10 where M is the multiplication factor. The unmultiplied dark current is 10 nA and bandwidth is 700 MHz. What is the avalanche photodiode noise current per square root of bandwidth
Discuss why the primary of a power transformer would have excessive current if the secondary were short-circuited. Why would there be no voltage across the secondary if the primary is open
A 26 resistor is connected across a 65 V battery. How much energy is used by the resistor in 5 min
An AM modulator is operation with an index of 0.4. The modulation input is: m(t) = 4cos (3πfmt) + 2cos (5πfmt) + 4cos (7πfmt) What is the efficiency of the modulator Sketch the spectrum of the modulator output showing the weights of all impulse funct..
Two amplifiers are cascaded, one with a voltage gain of 6 db and the other with a voltage gain of 4. If 1 V is applied at the input of the first amplifier, what is the voltage at the output of the second amplifier
Determine the peak-to-peak current ripple in the output inductor for a forward converter and determine the output voltage ripple of the converter . We know the following parameters: duty cycle d, input voltage Vin, turn ratio: N1/N2
A long shunt cumulative compound motor is run at full load. It is rated 240 V, 10 A, 1200 rev/min. If Rf=180 ?, Ra=2 ?, Rs=1.22 ?, and the stray power losses are 160 W, find: a. The back EMF. b. The power rating.
A balanced ac bridge has the following constants arm AB, R= 2,000Ω in parallel with C= 0.047μF; arm BC, R=1,000Ω in series with C= 0.47μF; arm BC, R=1000Ω in series with C= 0.47μF; arm CD, unknown ; arm DA, C= 0.5 μF.
G=X'Y'Z'+XYZ+XY'Z+X'YZ' A) Simplify this equation using boolean algebra (theorems),show each step please. B) Simplify this equation using a Karnaugh map.
Consider the transformer to deliver its rated kilovoltamperes at 0.80 power factor lagging to a load on the low-voltage side with 240 V across the load. Find the highside terminal voltage.
A buck converter has Vs=30 V, Vo=20 V, and a switching frequency of 40 kHz. The output power is 25 W. Determine the size of the inductor such that the minimum inductor current is 25 percent of the average inductor current.
What memory modules are needed if the customer wants 1.25GB of RAM?(What capacities and how many of each capacity?)
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