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In a DSSS multiple user system, how many simultaneous users may be supported such that an average BER of less than 10E-3 is maintained for each user if the average Eb/No=10dB, and a Pg from a straight code of 11 bit shift register length or the Npg = (2^11- 1) since we do not consider the 00000000000's state.
Use the DSSS Pe Formula in which the thermal noise Eb/No is not a factor.
What is the effective data rate of this transfer (not counting the time for reading or writing the DVDs)?
Discuss the factors that determine transformer efficiency. What are some sources of transformer losses and how can these can be reduced
The load of an industrial plant is 400 kVA at a power factor of 75 percent lagging. An additional motor load of 100 kW is needed. Find the new kilovoltampere load and power factor of the plant load if the motor to be added
1. The current in a circuit is 1 amp. What will the current be when the voltage is increased by 50% 2. A 10ohm resistor is connected across a 12 V battery. How much current is there through the resistor
Knowledge about Circuit Analysis, A 5.1K resistor is connected between the cathode of a 6.2V zener diode and a 12V power supply
Find the coefficients of reflection for fresh water (with relative permittivity equal to 81) of a vertically polarized wave that hits the water surface at an incident angle of 60o.
When fed from a signal source with a peak amplitude of 0.1v and a source resistance of 20k , the peak amplitude v(pi)is 5mv. specify Re and bias current Ic. The BJT has beta =100. If the total resistance in the collector is 5 k,
Determine the relative probability of finding the electron at the distance (a) 12 A beyond the barrier, and (b) 48 A beyond the barrier, compared to the probability of finding the incident particle at the barriers edge. Plot the wave function for ..
a. Draw a block diagram of a closed-loop control system. b. Use the block diagram to describe how the system works. c. What is the advantage of this system over an open-loop system
Determine experimentally the value of a resistor that when placed across the battery will make a measurable change in measured battery voltage. Keep the voltage decrease from open circuit value to 10% or less.
A 50 hp, 460 V, three phase induction motor draws 61 amps when operating at rated voltage and at a power factor of 0.85 lagging when supplying a rated load. knowns: 1hp=746watts effeciency (n) = Pout/Pin = Pout/(Pout+losses)
To analyze electric circuits, it is often necessary to solve simultaneous equations. To find the voltages Va, Vb, and Vc at nodes a, b, and c, the equations are 2(Va-Vb) + 5(Va-Vc) - e^(-t) =0 2(Vb-Vc) + 2Vb + 3(Vb-Vc) =0
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