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A 1/10hp motor has a 1000 rpms with 20v across the armature and series winding there are three speed control switches. The motor speed decreases linearly what are the four speeds available if each resistor is .54 ohms.
An electric flux density is given by D = D0 a, where D0 is a given constant. (a) What charge density generates this field (b) For the specified field, what total charge is contained within a cylinder of radius a and height b
Calculate the required thickness [in x-direction] of a silicon wafer in nm to create an 0.2 eV energy difference between the two lowest Enx energy states, use mn*= 0.3 x mo with mo = 9.11x10-31 kg. Assume the y and z-direction infinitely long.
It will have vertical walls and be 15 feet wide. It will be 10 feet deep, have a slope of .0015 feet/foot, and a roughness coefficient of .014. How deep will the water be when 1000 cubic feet/second is flowing through the channel
For achieving a desired error probability, we are given that the receiver requires at least -30 dBm of power, and the maximum pulse spread must be no more than half of the bit period. The transmitted pulse has a spectral width of 0.5 nm, and the t..
silicon is doped so that 1 in 10000 Si atoms is replaced by phosphorous atoms. A) Knowing that only 30% of the phosphorous atoms donate electrons at room temperature (30% ionization) , determine the effective doping level and electron concentratio..
Design a controller with a 4-bit state register that gets synchronously initialized to state 1010 when an input reset is set to 1.
Write and test a program for the EASy68k to input a string from the keyboard and output a reversed string to the screen. Use a subroutine to perform the string reversal operation.
An interplanetary spacecraft far beyond Earth's orbit communicates with an equatorial ground station on the Earth. Calculate the maximum Doppler shift seen at X-band (8.4 GHz) due just to the Earth's revolution around the Sun and Earth's rotation ..
Consider a superheterodyne FM receiver designed to receive the frequency band of 88 to 108MHz with IF frequency 10.7MHz. What is the range of frequencies generated by the local oscillator for this receiver
Design a 4-bit binary incrementer using HALF-ADDERS as building blocks. The circuits implements A+1=S where A and S are 4-bit binary numbrers. The circuit has 4 inputs A3A2A1A0 and 5 outputs : S3S2S1S0 and overflow C4. Draw the circuit diagram wit..
A system or component is imaginary (critically ) stable if at least one real part of the roots of the characteristic equation is equal to zero. Determine the stability of the following system and design the circuit.
For each one of the 3 frequency responses, H(f), in parts (a), (b), and (c) do the following: i. Obtain the system's impulse response, h(t). ii. Indicate if the system is BIBO stable or not, and state why. iii. Indicate if the system is causal or not..
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