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Shows an electric-circuit which is called a phase-lag network. Derive the transfer function and consider the above bock-diagram of figure (3). You are now required to derive the transfer function
Determine the minimum required numerical value of the dimension b of the posts in term of mm and
Design a suitable vapour compression refrigeration system to achieve this duty, a suitable chilled water piping system to achieve the required duty and suitable heat rejection facilities for the re
any noise will pass straight through to the ADC subsystem, introducing measurement error. You have two choices to mitigate this: SW filtering and HW filtering. Either way around, you need a HW anti-
The input impedance of a 31cm long lossless transmission line of unknown characteristic impedance was measured at 1 MHz. With the line terminated in a short circuit, the measurement yielded an input
Which transistor bias circuit arrangement provides good Q-point stability, but requires both positive and negative supply voltages.
A piece of n-type silicon is doped so that the majority carrier concentration is 10^15 cm^-3 What is the minority carrier concentration? (ni = 1.5 x 10^10 cm^-3) If a piece of silicon is doped with ph
A first-order allpass filter impulse response is given by h(t) = - d(t) + 2e^(-t)*u(t) a) find the zero-state response of this filter for the input e^(t)*u(-t). b) sketch the input and the correspondi
A R-C high-pass filter contains a 1 µF capacitor and a 1k resistor. Suppose a single "square" voltage pulse of 5 V for 1 ms duration is applied to the input. Carefully and neatly sketch the re
There is a 50 Mhz clock signal on the FPGA board. we want to have a 1 Hz signal for testing all the designs. Find out what size of the counter we need in order to obtain this signal from the on boar
A parking lot has 1000 spots. The automated entry / exit system allows maximum 5 percent more cars to enter the lot to minimize congestion. What should be the size of the counter to keep track of th
A proportional controller for a rotating antenna has a gain of Kp of 5 in-oz/deg. The antenna was initially pointing south, but was then commanded to point southeast. Find the torque applied to the
A small gasoline engine can put out 18,000 N-m/min of mechanical power. The engine is used to drive an electrical generator that is 80 percent efficient. 1 N-m = 2.78 X 10-4 W-h. Find the output of
A torque of 18 N-m is applied to a rotating part. The moment of inertia is 0.078 kg-m2. How much time (in seconds) will it take to rotate the part 180°?
The fermi energy level for a particular T = 300K is 6.25 eV. The electrons in this material follow the Fermi-Dirac distribution function. (a) Find the probability of an energy level at 6.50 eV being
In doing so, they learned through laboratory studies that the maximum growth rate of the bacteria will be 0.66 day -1 and that the half-saturation constant will be 64.5 mg L-1.
1. What is the purpose of core in hollow solder wire 2. What is tinning, and why is it important 3. Why is safety so important when soldering 4. Why has lead-free solder replaced lead-based solder. Be
A 25KVA transformer supplies a load with the following schedule: 8hrs-full load with 0.8 lagging power factor. 4hrs-75% full load at unity power factor. 12hrs-No load. The transformer is energised 24h
AWG 14 solid copper house wire is designed to operate within a temperture range of -40 degree C to +90 degree C. calculate the resistence of 200 circuit feet of wire at both temperatures.
A spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner sphere has radius 10.0 centimeters, and the separation between the spheres is 1.50 cent
If we have a transfer function T(s) = |Z(s)|/|P(s)| and we had a pole at s=-500; Then the magnitude would be sqrt(500^2 + w). So how does that not decrease the magnitude of the transfer function at
Point charges, each of value √(4πε0)C, are located at the vertices of an n-sided regular polygon circumscribed by a circle of radius a. Find the electric force on each charge for (a
What, exactly, is necessary to establish electrical continuity between two wires. If want to have an electric current flow out of one wire and into another, what must be done with those two wires to
Some of the particles comprising atoms react to each other in a way that scientists categorize as electric charge. There are two fundamental types of electric charge: positive and negative.
Early scientific researchers hypothesized that electricity was an invisible fluid that could move through certain substances. Those substances "porous" to this "fluid" were called conductors, while