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Figure 9-36b shows a circuit in which the control voltage can be 0 V or +5 V. If the audio input voltage is 10 mV, what is the audio output voltage when the control voltage is 0 V? When the control voltage is +5 V? What do you think this circuit is supposed to do?
i) Calculate the number of calls/hour/cell and the number of calls/hours/km2 ii) Calculate the number of users/hour/cell and the number of users/hours/channel iii) Find the modulation frequency for this system.
A pressure difference across an elbow in a water pipe is measured. Estimate the flow rate in the pipe.
The excess charge in a certain medium decreases to one-third its initial value in 20s. (a) If the conductivity of the medium is10^(4)S/m, what is the dielectric constant of the medium(b) What is the relaxation time
Draw the signal flow graphs for both the direct form I and direct form II implementations of this system as a 2nd-order system using only real coefficients.
Let Un be a sequence of iid zero-mean,unit-variance Gaussian random variables. A "low pass filter" takes the sequence Un and produces the sequence Xn =1/2 ( Un +Un-1) a.) Does this sequence converge in the mean square sense
The probability that a person will install a black telephone in a residence is estimated to be 0.3. Find the probability that the tenth phone installed in a new subdivision is the fifth black phone.
during an ap the membrane potential typically moves from -70mv to 20mv and back again. in a cell with 10um radius and
Mrs. Brooke owns a robot with an FSM brain. The robot walks from left to right along a paper type containing a sequence of 1's and 0's. On each clock cycle, the robot walks to the next bit.
a single phase 100 kVA, 1000/100 V transformer gives the following test results: Open Circuit test: 100V, 6.0 A and 400 W Short Circuit test: 50V, 100A and 1800W At what load will maximum efficiency occur
Design an NMOS logic circuit with a depletion load that will sound an alarm in an automobile if the ignition is turned off while the headlights are still on and/or the parking brake has not been set.
cathodes tied to 10v and ground respectively. The voltage at the anodes is 0.1v. The diodes conduct 1mA at 0.7v.find by what factor the reverse leakage current of the diodes exceed Is.
A Si IMPATT diode is operated at 140 GHz with a dc bias of 15 V and an average biasing current 150 mA. (a) If the power conversion efficiency is 25% and the thermal resistance of the diode is 4OoCnV.
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