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Determine the SNR required to achieve an error probability of 10-5.
Compare the power efficiency of this system with a 16-level PAM system.
Determine the three conditional probabilities of error: Pe given that s(t) was sent, Pe given that -s(t) was sent, and Pe given that 0 was sent.
Determine the autocorrelation and power density spectrum of the three-level sequence {Bn}.
An electrical system is rated 10 kVA, 200 V at a 0.5 leading power factor.
The basic biasing arrangement for the field-effect transistor (FET), a device of increasing importance in electronic design.
Noting the magnitude of V3 compared to V2 or V1, determine R3 by inspection.
Determine the increase in resistance of a copper conductor if the area is reduced by a factor of 4 and the length is doubled.
What is the new resistance level of a copper wire if the length is changed from 200 ft to 100 yd, the area is changed from 40,000 CM .
Using Table, find the resistance of 1800 ft of 8 and 18 AWG wires.
The resistance of each line cannot exceed 0.006 O, and the maximum current drawn by the load is 110 A. What gage wire should be used?
Determine the cross-sectional area required to carry a current of 5000 A.
Charge is flowing through a conductor at the rate of 420 C/min. If 742 J of electrical energy are converted to heat in 30 s.
The potential difference between two points in an electric circuit is 24 V. If 0.4 J of energy were dissipated in a period of 5 ms.
Determine the number of hours at a drain current of 150 mA, and compare the ratio of drain current to the resulting ratio of hours of availability.
A half-wave rectifier circuit with a 1-kO load operates from a 120-V (rms) 60-Hz household supply through a 12-to-1 step-down transformer.
At what forward voltage does a diode conduct a current equal to 10,000IS?
What happens if the transistor is replaced with another having ß=100? Give the value of VC in the latter case.
For what load resistance connected to ground is the output negative voltage limited to -1 V before Q7:begins to conduct?
CMRR Assume ß = 100, |VBE | = 0.7 V, |VA | = 60 V, Vt = 0.7 V, and kO (W/L) = 2 mA/V2.
Find A1, A2, the open-loop voltage gain, the input common-mode range, and the output voltage range.
Design so that all transistors operate at 0.2-V overdrive voltages. Specify the W/L ratio required for each MOSFET.
With A and B at a dc voltage of VDD/2, perform a dc design that will result in each of Q1:Q2:Q3:and Q4: conducting a drain current of 200 µA .
Find the input resistance of the first stage, and the current gain from the input of the first stage to the collectors of the second stage.
What should this resistor be changed to if the output resistance is to be reduced by a factor of 2?