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Suppose that the distance from the base station to your digital cell phone is 50 meters, and that the maximum transmission rate that you can achieve is 128 kbits/second. If the bandwidth of the channel is 32 kHz, what is the maximum transmission rate that you can achieve at a distance of 0.5 km from the base station?
Find the Thevenin and Norton equivalent circuits for the circuit. Find the maximum power that this circuit can deliver to a load if the load can have any complex impedance. Repeat if the load must be purely resistive.
A 6-bit DAC has an input 1001012 and uses a 10.0-V reference.
Suppose a car is traveling at +23.2 m/s, and the driver sees a traffic light turn red. After 0.563 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 7.00 m/s2. What is the stopping distance of the car
In a 50 KVA, Y connected, 440 V, 3 phase, 50 Hz alternator, the effective armature resistance is 0.25 ohms per phase. Synchronous reactance is 3.2 ohms per phase. Determine at rated load and unity power factor,
(a) At t = 0, the current flowing in a 0.5-H inductance is 4 A. What constant voltage must be applied to reduce the current to 0 at t = 0.2 s (b) Starting at t = 0, a constant 12-V voltage source is applied to a 2-H inductor.
Block diagram and equations for control system water fill, Develop a control system to fill a container with water after it is emptied through a stopcock at the bottom
Determine zero-input response of (D2+4D+40)y(t)=(D+2)x(t) with initial condition y0(0)=2 & dy0(0)/dt=16.78.
Basics problems of Induction motor, The frequency of the induced rotor currents in the rotor of a 60 Hz induction, machine is 2 Hz. Furthermore, the fields in the air gap turn at -40 rpm with respect to the rotor.
Consider a BPSK signal where each bit is represented by a triangular pulse with width T and height A. What is the "energy per bit" for this BPSK pulse with A=7V and T=0.008s
A strain gage has a nominal resistance of 120Ω. the gage is installed in a bridge circiut having equal arm resistance of 120Ω qne iw operated as a current-sensitive device with a detector resistance of 350Ω. the voltage source is 4.5 V.
A pulse is used to measure the frequency response of a system. Since we expect the frequency response to extend to 20 kHz, select a pulse whose magnitude spectrum is constant within 1% out to 20 kHz.
A class C amplifier severely distorts the signal. How can we use a resonant tuned filter to get the desired signal at the output What type of transistor (BJT or FET) would you like to use at the front end (first amplifier) of a receiver
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