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For a maximum positive envelope voltage +12 V and a minimum positive envelope amplitude of +4V, determine the modulation coefficient and percent voltage.
Sometimes audio (or any) signals x(t) are decomposed into a sum of sinusoids. Consider x(t) the sum of three sinusoids of frequencies 518Hz, 730Hz, and 524Hz whose amplitudes are 1/2 of their corresponding frequencies.
(a) Calculate the length of the blades of a 1 MW wind turbine. Assume the air density is 1.0 kg/m^3, average wind speed is 15 m/sec, and overall efficiency is 25%. (b) An ideal solar cell is operating at30°C. The reverse saturation curren is0.15 mi..
the rms voltage of a balanced 3 phase Y connected source is 110 volts at 60Hz. it is connected to a balanced Y Load by 3 distribution lines with an impedence on each line z=1+j2. the load impedence is z=19=j28 per phase.
Design a simple circuit diagram,to complete the following task.1)Green lamp light up when the system is ON. 2)Once the pushbutton is pressed, Green Lamp turns OFF and Red Lamp turns ON,Motor starts to spin.3) Once the sensor detect the motor rotat..
Use the formula for decibels, 20*log(|T|), to find out what the -3db value would be in Volts per volt when the pass band is 1 V/V, 2 V/V, 3 V/V. find the way to find this critical frequency value with out converting to decibels
Three screws are drawn at random from a lot of 200 screws, 10 of which are deffective. Find the probibility thats the screws drawn will be nen defective in drawing a.) WITH replacement
Looking at this pattern from left (MSB) to right (LSB), when you see a ‘1' the pulse should be 'ON' for 0.5 seconds. If you see a ‘0', the pulse should be ‘ON' for 1.5 seconds. In either case, the ‘OFF' time should be 2.0 seconds after each ‘ON' t..
In order to control the slope of a ramp produced by an integrator, the values of Vin, R, and C may be varied. Assuming a fixed value for C of 10 μF, would it be better to have a relative large Vin with a correspondingly large value of R
Suppose we have a causal LTI system with rational system function H(s). We don't know H(s), but we do have the following information: i. When the input to the system is x(t) = u(t), the output y(t) is absolutely integrable.
a digital channel is described by 16 QAM, the data rate is 50 Mbps, the bandwidth is 200 MHz, the power is 1 W, and the received noise level is 50 mW. Resolve for SNR, Baud Rate and the Max theoretical bit rate for the channel.
1) Calculate w in radians per second for each of the following: a. f = 30 Hz b. Period = 20 ms 2) Determine the rms values for each of the following: a. v = 100 sin wt V b. i = 8 sin 377t A
a differential protection system with a power transformer 450MVA, 230/115kV, determine: a. The current line on both sides of the power transformer b. Based on these current selection for the cts from the table. c. Set (identify) the corresponding con..
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