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a) A 230 V/25V, 50 HZ transformer with a rated primary current of 1,2 Amps is used to supply a number of 25 V, 30 Watt halogen light bulbs. Assuming an ideal transformer and that it operates within its rated values, determine the maximum number of bulbs that can be used.b) A transformer is used to match impedances of 10 KΩ and 600Ω . Determine the turns-ratio for the transformer. Explain the differences that you would expect if the load (lamps) in question 3a had consisted of reactive loads.
Using the audiorecorder() function in MATLAB, make a recording of your voice. Use a sample rate of 8kHz, 16 bits per sample, and aim to record around 2 seconds worth. Quantize the
Design a DC motor control system to run the 48V DC motor at 40rpm up to max load of the motor. You are responsible for designing the control of a 24V supply along with the speed s
For the circuit of Figure, given that V CC = 5V, R C = 1k, β = 100, and the high range is 4 to 5 V, choose R B such that any high input will saturate the transistor with the ba
Using the optimized 6-311G(d,p) geometry determined in question 1, perform the following equivalent core calculations for any two inequivalent carbons of butadiene: (a) Equivale
Q. What are transmission bridges? How do they assist in satisfying the connectivity? Ans: A typical transmission bridge is demonstrated in figure. Series capacitance and shunt
Using Nyquist theorem, determine the sampling rate for an analog signal with frequencies from 3000Hz to 86000Hz and for a signal with ahorizontal line in th
Explain time multiplexed space switching? With a neat diagram illustrate its operation. Ans: Time division switches where an outlet or an inlet corresponded to a single s
Q. What is centralized SPC? In centralized control, all control equipment is replaced by a single processor which should be quite powerful. It should be capable of processing 1
Consider the point-to-point radio link introduced in problem 9. By how much must transmit power be increased to maintain the maximum BER of 10-5 if the channel is flat Rayleigh-fad
Q. Balanced wye-connected loads drawing 10 kW at 0.8 power factor lagging and 15 kW at 0.9 power factor leading are connected in parallel and supplied by a 60-Hz, 300-V, three-phas
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