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Use a relay that has doublepole double throw contacts to apply opposite polarity voltages tothe rotos of a small DCD motor upon the throwing of a singleswitch. Include a seperate ON/OFF switch in order to stop the motor before changing directions.The relay will be energized whenthe applied voltage is 12 V. The motor will either be a 9-18Vor a 3V.As part of the design, providean indacation of the direction of roatation bu illuminating a REDLED when the motor is turning clockwise and a GREEN LED when themotor is turning counter clockwise
Two generators are connected in parallel to the same bus bar and each has an inductive reactance of 10% on rating. Generator 1 is rated 2,500 kVA and 2.4 kV, and generator 2 is rated 5,000 kVA and 2.4 kV.
a) Find the sample mean. b)If the calculator produces three digit random numbers that are uniformly distributed between 0.000 and 0.999, find the variance of the sample mean.
A FIR filter is depicted in the figure below. Assume that the system is at rest and an input sequence is applied to the system. Determine the first seven samples of the system output Assume that the system is initially at rest. x(n)=u(n)+u(n-1)-2u..
A part hollow non conducting sphere has a uniform volume charge density of 200 nC/m2. Find the potential difference between the inner surface at r=2cm and outer surface at r=5cm
a) Using Shannon's expansion theorem, expand F about the variable d. b) Use expansion in (a) to realize the function using two 3-variable LUTs and a 2-to-1 mux. Specify the LUT inputs. c) Give the truth table for each LUT.
Operation of NPN Bipolar Transistor : a. Describe the operation of a typical NPN bipolar junction transistor used both as an amplifier and a switch. b. List the 4 regions of operation and draw I-V characteristic curve.
1) Determine the dynamic range for a 10-bit sign-magnitude PCM code 2) Determine the minimum number of bits required in a PCM code for a dynamic range of 80 dB. What is the coding efficiency
What is the maximum power dissipated in the load when the Thévenin voltage is 17 V cos(37 rad/s t + 24°), the Thévenin impedance is 127 -j 182-ohm and the load impedance is 127 + j 182-ohm
Design a circuit that has a low pass transfer function with a3dB band edge at 30Hz. you may use capacitors, inductors, and bothdependant and indepandant sources.
Each pole of a 100kW, 250v flet-compound generator has a shunt field of 2000 turns and a series field of 7 turns. If the total shunt field resistance is 100 ohms, calculate mmf when the machine operates at rated voltage.
The solutions to Schrodinger's wave equation for a particular situation is given by Psi(x) = sqrt(2/ao)*e-x/ao. Determine the probability of finding the particle between the following limits: (a) 0
1. Consider the following voltage wave V(t) = 170 + cos(377)t volts what's the RMS value of this wave 2. What voltage will a DC voltmeter read if connected to an ideal voltage generator with the voltage of V(t) = 170 + cos(377)t.
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