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A voltage source v(t) = 28.2cos(50000t) is wired in series with a 100 Ω resistor, a 0.40μF capacitor, and a 2.0 mH inductor.
1. Express the voltage from the source as a phasor, V.
2. Find the phasor current I in all the elements.
3. Find the phasor voltage V between the ends of the capacitor.
design op amp circuit to produce output vout which is related to inputs v1, v2 and v3 by expression vout= -(3v1+5v2+8v3). assume max permitted resistor value= 200k. use only one op amp
A Si PIN photodiode has an i-Si layer of width 20 µm. The p+ layer on the illumination side is very thin (0.1µm). The PIN is reverse biased by a voltage of 100 V and then illuminated with a very short optical pulse of wavelength 900 nm.
A transmission line has a resistance of 0.001 pu , and 0.01 p.u reactance. Voltages at the both ends (p and q) of the transmission line are 1.0p.u each. Angle at bus "p" is 45o and the angle at bus " q" is 30o.
Design a decade counter (negative edge-triggered counter) using flip flop circuit that can be used to perform binary counting. Show the timing diagram for the input and four outputs of the decade counter.
Find the characteristics equation and the corresponding roots for the following ODEs and identify its case a) y" + 6Y' + 9y=0 b) 10y" + 18y' +5.6y=0 c) 10y" + 50y' + 65y =0 Slove the intial value problem a) problem 2a) with y(0)=2 and y'(0)=-5
What is the peak frequency deviation of the FM signal? What is the FM improvement in dB?
A signal, m(t) which is bandlimited to 20 KHz, is going to be transmitted over a channel a) If the stepsize must be less than \(.002 m_{p}\) and the number of steps mut be a power of 2, calculate the minimum number of bits that satisfies this crit..
A single-phase 240/120 V transformer has the following parameters: R1 = 1-ohm; R2= 0.5 -ohm; X1 =6 -ohm; X2 = 2 -ohm; R0 = 500 -ohm; X0 = 1.5k -ohm.A load of 10 -ohm at 0.8 power factor lagging is connected across the low-voltage terminals of the tra..
Draw energy band diagrams, for k lying between 0 and pi/a (take a=5Ã), for a material whose valence band follows the equation. and calculate the effective masses for conduction and valence bands.
What approximate minimum BER is required for voice signals, data signals and what is the approximate BER level for the optical fiber systems ?
A PWM is used in 8-bit mode to produce a signal with a 1 msec period and 60% duty cycle. Determine the value required for any pre-scaling, and the values for the period, and duty cycle registers. The E-clock is 24 MHz.
An EKG signal is contaminated by 60-Hz noise. Design a bandstop filter to remove this noise while limiting distortion of the EKG signal. Sketch the magnitude and phase response.
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