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a signal alternates abruptly between -1V and +2V with a duty cycle d. sketch a waveform, and find its full cycle average if d=25%, 50%, 75%for what value of d is the full wave average 0?
A random variable X is normally distributed with unknown mean u and unknown standard deviation sigma. Find u and sigma if it is known that the probability X is less than 10 is 0.6950 and the probability that exceeds 6 is 0.7939.
Consider the causal LTI system with system function H(s)=Y(s)/X(s)=1/(s+2)^2 If the input is x(t)=sin(2t) for t>0, find an approximate expression for the response y(t) that is valid for large t.
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..
An opamp based integrator is measured at 1KHz to have a voltage gain of -100 V/V. At what frequency is its gain reduced to -1V/V. And, what is the integrator time constant
1. Calculate the sample values for one period. 2. What is the Nyquist sampling rate for this waveform 3. If the samples are converted to 8 bits, find bits for each sample values. 4. What is the quantization step value and quantization error
In comparing the behaviour of an n-channel MOSFET with a p-channel device having identical geometry and threshold voltage, it is found that the n-channel FET has a greater drain current than that of the p-channel FET.
If there is two AC currents in a circuit and both have different angular velocity, is there a way to analyze the circuit by finding an equivalent angular velocity between the two currents and superposition can't be used
In rectangular form (numerical values required to nearest 0.1) what is the input impedance of a λ/8 section of 50 ohm line connected to a 200 ohm load. Include a figure showing the configuration having the input impedance to be calculated.
Suppose you want to build a simple RS flip-flop that is set and reset by negativegoing pulses. All you have are two 2-input AND's and two 2-input NOR's. Show how you would build this odd circuit from the available material.
A two-wire air line has the following line parameters: R = 0.404 (m/m), L= 2.0(µH/m),G= 0, and C= 5.56 (pF/m). For operation at 5 kHz, determine (a) the attenuation constant a,(b)the phase constant ß, (c) the phase velocity u,
Suppose that the machining operation requires 1 kW, that the tool machine ihas 90 percent efficiency, and that the supply current is 14 A rms with a power factor of 0.8. Find the AC machine efficiency.
Design a 7.5-V zener regulator circuit using a 7.5-V zener specified at 12mA. The zener has an incremental resistance r(z) = 30 ohms and a knee current of 0.5mA. The regulator operates from a 10-V supply and has a 1.2k-ohm load.
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