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A continuous-valued signal had a probability density function that is uniform over the range from -8V to +8V. It is sampled and quantized into eight equally spaced levels ranging from -7 to +7.
a)Write the probability density function for the discrete random variable representing one sample.b) Find the mean value of this random variable.c) Find the variance of this random variable.
The serial ports on two computers which use binary signaling are connected by a twisted pair cable. The cable has a flat frequency response up to 120KHz, with negligible group delay distortion. That is, the bandwidth of the cable is 120KHz.
Use the concept of phasor to combine each of the following sinusoidal functions into a single trigonometric expression: (a) y = 50cos(500t + 60) + 100cos( 500t - 30) (b) y = 200 cos( 377t + 60) -100sin( 377t + 150)
A 10 kwatt, 480V , single phase 60Hz, 24 pole motor has an stator winding resistance of 0.1 ohm from line-to-neutral. The rotor is not a permanent magnet but a separately powered electromagnet (field wind-ings) that takes .5 A at 120 V.
Vary as square root-application, The frequency f of vibration of a wire varies directly as the square root of the tension T of the wire
Measurements on sodium have provided the following data: resistivity 4.7 ×10-8ohm m, Hall coefficient -2.5 × 10-10m3C-1, critical wavelength of transparency 210 nm, and density 971 kg m-3. Calculate (i) the density of electrons, (ii) the mobility, ..
Design an op-amp amplifier circuit where the smallest resistor available is 10k . The circuit must yield the relationships shown in the following equation: Vout = 8v1 + 8v2 - 4va - 9vb
A thermal oxide of thickness 120 nm needs to be grown on a silicon wafer (100) in dry oxygen. If the process integration issue requires having a temperature not higher than 1050 degreeC, determine the time required to obtain the desired thickness.
An idustrial plant uses two pieces of equipment. A) A lightining element that comsumes 10 kw when supplied at 100v, 60Hz; and B) A furnance consuming 360 kw and 400 KVAR when supplied at 2000v, 60Hz.
The output response for a system is given as Vo(t) = A(1-e^-at)sin(ωt). Is this a proper representation for an output response given that it contains a sinusoidal term? Fully explain your answer.
A silicon diode has a doping profile such that ND = ax3. What is the depth of the junction assuming the p side is uniformly doped with NA per cubic cm. Assume the x origin is at an ideal ohmic contact on the n side of the diode.
The current through a branch in a linear network is 2 A when the input source is 10 V. If the voltage is reduced to 1 V and the polarity is reversed, the current through the branch is a. - 2 A b. - 0.2 A c. 0.2 A
A common-source amplifier utilizes a MOSFET for which VA=12.5 V and is operated at VOV = 0.25V. What is the value of its (gm ro). The amplifier feeds a load resistance RL = 15K ohm. The designer selects RD=2 RL.
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