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Consider a circuit consisting of a sinusoidal source vs(t) = cos(t)u(t) volts connected in series to a resistor R and an inductor L and assume that they have been connected for a very long time.
(a) Let R=0 and L=1 H. Compute the instantaneous and the average powers delivered to the inductor.
(b) Let R=1 and L=1H. Compute the instantaneous and the average powers delivered to the resistor and the inductor.
(c) Let R=1? and L=0H. Compute the instantaneous and the average powers delivered to the resistor."Hint: In the above parts of the problem use phasors or the trigonometric formulaCos (a)cos(ß)=0.5[cos(a-ß)+cos(a+ß)]"
(d)The average power used by the resistor is what you pay to the electric company, but there is also are active power for which you do not. The complex power supplied to the circuit is defined asP =1/2Vs I*Where Vs and I are the phasors corresponding to the source and the current in the circuit, and I* is the complex conjugate of I. Consider the values of the resistor and the inductor given above, and compute the complex power and relate it to the average power computed in each case.
The design must show all stages used in its development and must be implemented and tested in PSpice and suitable timing waveforms produced.
Polyethylene with ?_r = 2.25 is used as the insulating material in a lossless coaxial line with a characteristic impedance of 50 Ω. The radius of the inner conductor is 1.2 mm.
A coil of 2000 turns surrounds a flux of 5 mWb produced by permanent magnet. The magnet is suddenly withdrawn causing the flux inside the coil to drop uniformly to 2 mWb in 1/10 of a second. What is the voltage induced.
What is the minimum level of the positive envelope for an AM signal with an unmodulated peak carrier level of 30 V and 80% modulation
A microstrip antenna system operating at 915MHz must be designed using Rogers RO3010 substrate with the thickness of 0.635mm. The microstrip antenna should be connected to a microstrip feeding line of Zf=50O through a quarter-wavelength
Using SR Flip-flops and NAND gates, design a system that outputs 1 if it takes an even number of clock cycles to recognize the pattern 11-0-101. Otherwise it outputs 0.
Find an interesting (yet simple) circuit (LED flasher, battery charger, audio vu meter, etc.) on the internet and explain (as best as possible) how the circuit works. How does it utilize diodes, resistors, capacitors, transformers.
What would the effect of boundaries be on the diffusivity of a substance (e.g., if you have diffusion of a substance in a pipe, what would the effect of the pipe's walls be on the diffusivity
Draw the state diagram for a sequence that detects the sequence 0101 using a minimal number of states. The detector should also detect overlapping sequences. Design the circuit using D flip-flops. Draw the logic diagram.
Each of the four members of a "jukebox jury" is provided with a pushbutton; the button is pressed if the record played is a "hit" and is not pressed if the record played is a "miss". Design a digital logic system that lights a lamp
a) Based on your decision create a sampled signal of the sum of the two sines, and plot the magnitude of the zero centered FFT with property frequency annotation. Did it work Check with the data tip tool.
Write C code that senses 3 accelerometer readings into pins PAD 8, 9 and 10 and displays them on the LCD. Also run a timer in seconds and log the values of the accelerometers in 3 arrays every second.
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