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Engineers are always constrained by budget. What responsibility does an engineer have regarding the design of safe structures in places like Haiti where funds are not available to engineer structures to standards common in more developed nations? How does an engineer ethically develop a design when the budget is so severely constrained?
A pure inductance of 120 mH is connected in parallel with a 25 μF capacitor and the network is connected to a 100 V, 50 Hz supply. Determine (a) the branch currents, (b) the supply current and its phase angle, (c) the circuit impedance, and (d) th..
Design a multi-stage audio amplifier for delivering an average power of 400 mW to a 16 Ohm speaker from a microphone that produces a 10 mV peak sinusoidal signal and has a source resistance of 1 kW. Use standard NPN QN2222 for your design.
Why are such fibres sometimes used as polarization-holding waveguides and what is the source of the polarization-holding capability? How can such fibres be fabricated?
1- Use Mesh analysis to find V3 and Current i1, i2 and i3 in the following fig .
Calculate the output voltage rating of the power supply (excitation voltage), and the value of the inductance at 5kHz - What will be the input source voltage to the primary of the transformer?
Suppose unchirped Gaussian pulses at f = 1:55 fm are used to transmit binary data. You're given that the fiber dispersion parameter f = 17 ps/km-nm, and the dispersion length LD = 115 km. What is the half-width of the pulse at the origin
Q) Explain the Sequential Circuit with block diagram?
Assume that h is a random variable with PDF. Pn(h)=0.1*d(h-1)+0.9d(h-3). n is a zero mean white gaussian noise with variance 0.5. Assume that the channel state info is available at the reciever for each of the three branches.
Describe how you would use the voltage follower so the output load voltage (as measured with a scope probe) agrees with the value shown on the function generator front panel independent of load impedance. Describe any compromises or inefficiencies..
The oscillation could be tolerated if it never reaches 20 V because the onboard computer can mitigate it.- Will the compensation occur in time?
Why does the decibel voltage gain use a factor of 20 but the power gain uses a factor of 10?
A diode is connected in series with a 30-V rms source to charge a 12-V battery with an internal resistance of 0.1 ohm. Specify the series resistance necessary to limit the peak current to 2A. Estimate the time required to recharge a 10-A hr batter..
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