Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
(a) A chopper controlled electric train is powered from a 1500 VDE supply. The power semi- conductor switch element has a minimum effectice ON time of 40 Ms. during starting and slowspeed running, the output of the chopper has to go as low as 15 V. what is the highest chopper frequency possible to satisfy this reqirement ?
(b) The chopper in (a) has a minimum effective OFF time of 30 Ms. The chapper frequency is 2000Hz(i) what is the maximum duty cycle and maximum output voltage possible?(ii) if the full input voltage is to be made available to theload, show how this can be done
Determine which waveform in each pair is lagging: a) 6 cos(100πt-1000) and -6 sin (2π60t+1300)b) cos(10t-1000) and - cos(t-1000) c) cos (50πt - 1000) + cos (50πt - 200) and 9 cos (100πt - 200)
Design a microstrip transmission line with Z0 = 100 ohm that will be etached onto a dielectric substrate with er= 3 and a thickness of 4 mm. what should be the width of the microstrip line
An induction motor absorbs an apparent power of 500 kVA at a power factor of 75%, calculate the active and reactive power absorbed by the motor, what purpose does the reactive power serve
A negative feedback amplifier has a close-loop gain Af=100 and an open-loop gain A=105. What is the feedback factor If a manufacturing error results in a reduction of A to 103, what close-loop gain results
Starting from rest, a 4.70-kg block slides 2.10 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is k = 0.436. (a) Determine the work done by the force of gravity.
What is the frequency response analysis. Which two parameters are used to determine frequency response. Draw Bode Plot for G(jw) = 10 (jw + 3) / [(jw)(jw + 2)]
How many years ago was the desired ration of recreation land per 1,000 population exceeded if no more land was acquired and the population continued to grow at the indicated rate
A person fishing from a pier observes that 6 wave crests pass by in 7.3 s and estimates the distance between two successive crests to be 3.8 m. The timing starts with the first wave crest and ends with the last.
a) show the truth table b) show an algebraic expression in sum of minterms fom. c) show a minimum sum of products expression d) show the minterms of the complement of each function in numeric form.
b- Evaluate the sum of the second row of B. c- Multiply the second column of B and the first column of A. d- Evaluate the maximum value of the vector resulting from element-by-element multiplication of the second column of B with the first column ..
Let x1[n] = {-2,1,-3,-5,6,8} with arrow under -2 and x2[n]={1,2,3,4} with arrow under 1. a) determine circular convolution of 7 between x1[n] and x2[n] b) verify (a) calculations by computing the DFTs and IDFT.
A pacemaker is programmed to deliver pulses a certain times every minute for a patient with heart block. A 0.5µF capacitor controls the pulse discharges through a 2M resistor. One pulse is delivered every time the fully charged capacitor loses 50%
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd