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1. How is the magnetic clutch engaged and disengaged?
2. What devices may be used to energize the magnetic clutch?
3. Which type of drive is best suited for maintaining large differences in the input and output speeds? Why?
A multi-frequency signal is input to a first-order, low-pass filter. A 60 kHzcomponent is found to be reduced in amplitude by a factor of 90. Find the break frequency of this filter. determine the factor of reduction for the 5 kHzcomponent.
In addition, the distance between the components of the exciton is always such that there are intervening semiconductor atoms. Thus e in the Bohr formulation must also be replaced by Ks e0, where Ksis the semiconductor dielectric constant.
Determine the solution when the initial condition is y(-1) = 1.
We wish to build a machine with as great a flux density as possible while avoiding excessive saturation in the core. What would be a reasonable maximum flux density for this core?
A 400 pF capacitor is charged to a p.d. of 100 V. The dielectric has a cross-sectional area of 200 cm2 and a relative permittivity of 2.3. Calculate the energy stored per cubic metre of the dielectric.
The voltages at the generators buses are maintained at a magnitude of 1.0pu. The generator one (G1) is connected to bus 1. The generator two (G2) is connected to bus 2. The bus angle at bus 2 is taken as reference and is 00.
Write the VHDL ARCHITECTURE file for the Y(5) output only for a 8-to-1 demultiplexer. The inputs are D, the selects S0-S2, and the outputs Y(0)-Y(7). The select lines are BIT_VECTOR types, the data is BIT type and the outputs are BIT_VECTOR types.
My 9year old son is very interested in science and is working on aproject that involves hooking up a motion sensor (PIR) to a clock alarm. The challenge is to get the PIR to de-activate a sounding alarm.
the doping level of N-type semiconductor is ND = 5x10^19 cm^-3. Determine the room-temperature position of the Fermi level (with respect to the borrom of the conduction band) if the semiconductor is Si (Nc = 2.86x10^19).
For a Wien-bridge oscillator Given R = 20Kohm and C = 10nF what is the frequency of oscillation Given a required frequency of oscillation of f = 3kHz and R = 5kohm, what should the value of C be
Develop a computer program to generate the amplitude spectrum at the output of an FM modulator assuming a square-wave message signal. Plot the output for various values of the peak deviation. Compare the result with Figure 3.29 and comment on your..
Find the transfer function and the difference equation for a 2nd -order FIR filter that has unity d.c. gain, but for which the given input x(k) produces zero forced response. (Your filter will have a "notch" at the given frequency, and H(1) =1.)
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