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A capacitor is charged to 100 V and is then disconnected. Leakage reduces its voltage to 35 V in 45 minutes. Estimate the additional time required for the voltage to drop to 8 V. The leakage is represented by a resistance in parallel with the capacitance.
Assume that the channels between the transmit antenna and the receive antennas are statistically independent Rayleigh fading channels and the MRC combination is used at the receiver. Given that the system BER is 10^-2 when the mean SNR is 3dB.
Design a full-wave bridge rectifier to deliver 12DC with less than 0.1V ripples into a load drawing 100mA. Specify any components as well as the input AC voltage required. Assume 0.6V diode drops.
In a certain communications system a resonant-tuned circuit (tuned at 1200 kHz with Bandwidth = 15 kHz) is connected to the output of a non-linear amplifier (mixer). Find the frequency components at the output of the resonant-tuned circuit
a. Given the random binary data sequence 0110001011, provide waveform sketches for (i) NRZ change and (ii)split phase. b.Demonstrate satisfactorily that the split phase waveform can be obtained from the NRZ waveform.
Signal transduction refers to any process of changing one signal to signal of another type. An example would be a series of pulsing lights into the sound for the word: "Help". Discuss how this transduction could be done by a device.
Identify how one can generate pulse width modulation using the 9S12DG256 microcontroller. Identify various applications that require PWM. Show how microcontroller PWM interface is used to drive servomotors, and discuss these motors.
Plot how this absorbed power varies with signal strength W12, and discuss the behavior especially at very small and very large W12. Where does the absorbed power go? -and how does it get there?
Assume that you wish to connect an 8[ohm]speaker to an amplifier using an ideal transformer. The amplifier has a Thévenin voltage of 25[Vrms], and aThévenin resistance of 0.275[ohm]. Find the turns ratiofor the transformer
A microcontroller manufacturer, Agduino, offers a single product which is produced at two different plants. The first plant located in college station produces 2/3 of the microcontrollers. The remaining microcontrollers come from Austin.
A three phase star connected load is connected across a three phase balanced supply system. Obtain a set of equations relating to symmetrical components of theline and phase voltages.
Design the simplest circuit that has three inputs x1,x2, x3, which produces an output value of 1whenever two or more of the input variables have the value 1;otherwise, the output has to be 0.
The objective is to design a discrete common-emitter amplifier, the common-emitter amplifier is to have the following specifications: single ended input and output Av approximately 20 in the midband 3-dB bandwidth extending from 10 Hz
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