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The PMAC motor is driving a purely inertial load. A constant torque of 5 Nm is developed to bring the system from rest to a speed of 5,000 rpm in 5 s. Neglect the stator resistance and the leakage i
1. Calculate the length of time it takes for a signal to pass down an Ethernet bus that is 300 m in length, assuming the velocity factor of the cable is 0.66. 2. For the Ethernet bus in problem 1 an
A BJT has beta =100,mod Aie=10 at 10 MHz and it is operating at a collector current of 5 mA.If transition capacitance =10pf 1) calculate beta cutoff frequency of BJT,unity gain frequency and diffusion
Two stations running TCP/IP are engaged in transferring a file. This file is 104KB long, the payload size is 100 bytes, and the negotiated window size is 2000 bytes. The sender receives an ACK 900 f
A station running TCP/IP needs to transfer a file to a host. The file contains 2048 bytes. How many bytes, including all of the TCP/IP overhead, would be sent, assuming a payload size of 512 bytes a
The following represent soulution of the transmission line disserential equations for some arbitrary function f(u): V(z, t) =60 cos(1000t -5z) -120 pi f (2t +z/100 +12) V i(z, t) = 2 pi f (2t +(z/100)
Design a microstrip transmission line with Z0 =100 ohm that will be etched onto a sielectric substrate with er = 3 and a thickness of 4 mm. what should be the width of the microstrip line
A 440-V, 60Hz, 4-pole, delta connected three phase induction motor has the following parameters in ohms/phase. R1= .3, X1= .9, R2=.6, X2=.9 Rc=150, Xm=60 If the rotational losses are 6% of the d
(1) What would an amplifier with a gain of less than 1 be used for (2) (a) Do you think that the inverting amplifier is better than the non-inverting amplifier (b) Is there an advantage of using one
What is the purpose of core in hollow solder wire What is tinning, and why is it important Why is safety so important when soldering Why has lead-free solder replaced lead-based solder
A full-wave rectifier circuit having centre-tapped transformer has 500 turns in its primary winding, 25 turns from one end of the secondary winding to the centre tap and 20 turns from the other end
implement a circuit that generates VGA signals to draw a blue screen on your monitor in a resolution of 640x480. The following materials provide detailed descriptions of how VGA signals operate and
An aluminum casting that has a mass of 10 kg sits on a steel surface. How much force will be necessary to get it to start sliding. The static coefficient of friction (mu) for aluminum on steel is 0.
The steering wheel has backlash. This means there is a delay between the time the wheel is turned, and the time the car responds. The driver tends to overturn, which leads to instability and lack of
single phase motor draws 20A from a 200V, 50Hz supply with a lagging power factor of 0.8. Calculate the value of the capacitance needed to bring the current in phase with the voltage.
a) Compute and plot the magnitude of the DFT for f(t) using "fftshift", assuming a sampling rate of 8000 Hz and a duration of 0.5 second. b) Window the samples of f(t) using a hann window
A pn junction may be formed by depositing a single crystal film of uniformly doped p-silicon onto a substrate that has been doped n-type. The substrate is 500um thick, and the film is 20um thick. Th
Discuss different applications that could use non-inverting and inverting amplifier circuits. Will the actual op Amp characteristics cause any challenges it used for each application.
Find the transfer function of a second-order system that yields a 10% overshoot and a settling time (Ts) of 1.5s, plus tell the nature of the system
A shunt dc motor has RA = 0.1-ohm and VT = 440 V. For an output power of 16.1 hp, nm = 1,213 rpm and IA = 103 A. The field current remains constant. Find the the rotational power loss in hp.
A new type of Schottky diode is optimized for low-voltage applications. It has typical forward voltage drop of 0.2 V, but its leakage current can be as high as 80 mA. It is being considered for a 12
A small object with mass 3.20 kg moves counterclockwise with constant speed 5.50 m/s in a circle of radius 4.20 m centered at the origin. It starts at the point with position vector (4.20i hat + 0 j