Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Solved Assignments
Asked Questions
Answered Questions
Consider an RLC circuit with R = 5 Ohms, L= ½ H, C= 2/9 F and input voltage e(t) = exp(-t/2)a. Starting from KVL show that the DE for the voltage across R is given by: v'' + 10 v' + 9 v = -5 ex
A PWM is used in 8-bit mode to produce a signal with a 1 msec period and 60% duty cycle. Determine the value required for any pre-scaling, and the values for the period, and duty cycle registers. Th
A FIR filter is depicted in the figure below. Assume that the system is at rest and an input sequence is applied to the system. Determine the first seven samples of the system output Assume that the
A linear-phase FIR filter should be designed with the ideal magnitude response shown in Figure 1 which represents an narrow band-pass filter. The lower cutoff frequency, fL , is 2,000 Hz, and higher
Suppose a linear circuit contains a voltage source and a current source. When the voltage source is set to 10V and the current source is set to 10 mA, the output voltage is 1V. When the voltage sour
in step index fiber the core of diameter D has a refractive n1, which is typically equal to 1.48. core is typically surrounded by the cladding of slightly lower index. Where n2=n1(1-delta). The para
Consider a product data sheet for a photo-detector that states an optical power level of -32dbm is need at the photo-detector to specify performance requirement. What is the power level nW (nano Wat
Consider a multimode silica fiber that has a core refractive index of n1 = 1.48 and cladding index n2 = 1.46. Find the critical angle, numerical aperture and the acceptance angle.
The signal x(t) = sin(2pi(100)t),was sampling with sampling period T=1/400 second, 1- obtain a discrete time signal x(n) 2-what is the maximum sampling period which allows perfect reconstruction
a) Given that the refractive index of water is about 1.33, what is the polarization angle for light traveling in air and reflected from the surface of water b) Consider a diver in sea pointing a fla
Consider a Si phtodiode that is designed for operation at 900 nm. GIven a choice of two possible AR coatings, SiO2 with a refractive ndex of 1.4 and TiO2 with a refractive index of 2.3, which would
A aperiodic signal x(t) = 2sinc(2t) is multiplied by a periodic rectangular pulse train s(t) with fundamental frequency F0 = 4 Hz and the fundamental rectangular pulse given by p(t) = 1, -1/80 <=
Design a 4-bit synchronous up/down counter using T flip-flops. The circuit has one input up' /down such that input 0 means count up and input 1 means count down. up' is "up" with a bar over it
determine the values of the external resistors for a 555 timer used as an astable multivibrator with an output frequency of 2 kHz, if the external capacitor C is 3.0 mf and the duty cycle is to be a
An aperiodic signal x(t) = 2sinc(2t) is multiplied by a periodic rectangular pulse train s(t) with fundamental frequency F0 = 4 Hz and the fundamental rectangular pulse given by p(t) = 1, 1/80&nbs
The z-transform X(z) of a causal sequence x[n] has a zero at z1 = 0 and three poles at p1 = 3/4 and p2,3 = (1/2)(1 ± j). Determine the z-transform Y(z) of the sequence y[n] = x[n + 3], its po
A balanced three-phase inductive load is supplied in steady state by a balanced three-phase voltage source with a phase voltage of 120 V rms. The load draws a total of 10 kW at a power factor of 0.8
It operates at a power factor of 0.85 (lagging) at its rated conditions. Calculate the per-phase current that has to be carried by the cables to the power electronics converter and the step-up trans
A wind speed sensor generates an output voltage that ranges between 10 to 55 mV when the wind speed varies from 0 to 120Km/Hr.The output of the sensor is connected to an Analog to Digital Converter
A three-phase induction motor has been tested, and has small stator resistance. At 230 V, 60 Hz, the motor produces 40 N-m at 1740 RPM.a) Given a 40 N-m load, input of 115 V and 30 Hz, what operating
A gaseous mixture containing 50 mol% hydrogen and 50 mol% acetaldehyde (C2H4O) is initially contained in a rigid container at a total pressure of 760 mmHg absolute. The formation of ethanol occurs a
What is the function of the enable control input of a tri-state buffer If the output of two or more tri-state buffers is connected to each other, what is the restriction on enable control input line
The potential energy of a system of two particles separated by a distance r is given by the equation below, where A is a positive constant. U(r) = (A)/(r^11) Find the radial force vector F that each
The boom AC is supported at A by a ball and socket joint and by two cables BDC and CE. Cable BDC is continuous and passes over a pulley at D. Calculate the tension in the cables and the x,y,z compon
The secondary's of a step-down, three-phase transformer bank are delta connected and supply a three-phase 240v moter that draws 12A through each line. What is the current in each transformer winding