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construct a block diagram and an ASMD chart for a digital systemthat counts the number of people in a room. The one door through which people enter the room has a photocell that changers asignal x from 1 to 0 when the light interrupted. they leavethe room from a second door with a similar photocell that changes asignal y from 1 to 0 when the light is interrupted. the data path circuit consists of up-down counter with a display that shows how many people are in the room.
The receiver is designed to receive transmitted signals between 5 MHz and 25 MHz. High-side tuning is to be used. Determine the tuning range and tuning ratio of the local oscillator if the IF frequency is 400 kHz and 2 MHz, respectively.
Design a 3-input CMOS OR-gate using MOSFETs on the CD4007 chip. Make certain that the power dissipation is zero when the output is both logic 1 and logic 0. As an added challenge, design the OR gate using the minimum number of CD4007 chips.
Assume that the motor is operating in the range for which torque is proportional to slip and write an equation for motor torque in terms of slip when operating at rated voltage. Then modify the equation for operation from a 220-V-rms source.
The current flowing into a particular capacitor is given by the expression I = 6e^(-0.05t) where I is in Amps and t is in seconds. The voltage across the capacitor during the same time period is given by V = 10-10e^(-0.05t) where V is in Volts.
Design a unity gain first order lowpass digital filter with a 3dB point at Fc=100Hz using Bilinear Transformation. The sampling rate is 1kHz. A first order analog filter is given by Ha(s)=θc/(s+θc) (a) What is the 3-dB frequency of the above analog ..
From a point source inside the ocean we generate a sound wave. This wave propagates isotropically (the same in all direction, spherical wave) with frequency of f= Hz. The amplitude of the wave at m from the source of the sound is Sm=m.
If 20 MHz of total spectrum is allocated for a duplex wireless cellular system and each simplex channel has 25 KHz RF bandwidth, find: (a) the number of duplex channels (b) the total number of channels per cell site, if N = 4 cell reuse is used.
Two coupled coils have self-inductances L1 = 50 mH and L2 = 200 mH, and a coefficient of coupling k = 0.5. If coil 2 has 1000 turns, and I1 = 5Sin (400t) (i.e. the phasor current is 5? -90° A). Find the voltage at coil 2 and the flux through coil ..
Two bar magnets are placed in a straight line with their morth poles 5 cm apart. (a) what is the force of repulsion if M1=25.1*10^-5 Wb and M2=6.28*10^-5 Wb. (b) what is the field intensity at the M2 north pole as a result of the M1 north pole.
For a particular amplifier connected in a feedback loop in which the output voltage is sampled, measurement of the output resistance before and after the loop is connected shows a change by a factor of 100.
The spring of the pressure gauge shown in the figure below has a force constant of 1385 N/m, and the piston has a radius of 1.00 cm. As the gauge is lowered into water, what change in depth causes the piston to move in by 0.750 cm
The power dissipated in the resistor R0 is 89 W when connected to a 10V source. Find the total dissipated power if 3 resistors identical to R0 are connected in series to a 10V source.
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