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A three phase to single phase cyclo-converter employs a 6 pulsebridge circuite. This device is fed from 400 V.,50Hz.supply througha star/delta transformer whose per phase turns ratio is 3:1 .For an output frequency of 2Hz., the load reactance isw0L =3 Ω., The load reactance is 4 Ω. Thecommutation overlape and thyrister turn - off time limitthe firing angle in the inverter mode to 1650. Compute(a) peak value of r.m.s. output voltage (b) r.m.s.output current(c) output power.
a) the total charge in the device at t = 3 s, assume q(0) = 0 (round to three decimal places) b) the power consumed by the device at t = 1 s (round to three decimal places)
A long hallway has three doors, one at each end and one in the middle. A switch is located at each door to operate the incandescent lights along the hallway. Label the switches A, B, and C.
doped silicon at 300 K contains 10^16 acceptor atoms/cm^3. Find the hole concentration and the free-electron concentration.
a transmission line in a computer network induces a signal delay of 1.25 ns. the signal wave front velocity is chraterized by the equation Vw=c/n,where Vw=velocity of electromagnetic wave front :c=3*10^10 cm/sec is the speed of light in vacuum and..
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
The output/ input of a system is 30dB. detrmine the ratio Express x(t)=4*cos(100*t-45)+ 2*cos(250*t+30) in terms of exponential functions Then Detrmine the phase angles(in degrees) of the two frequency components of x(t).
Consider a (1;N) SIMO channel (with N > 1), represented by a N x 1 channel vector h1 with hH1 h1 = II h1 II2 = 1. Suppose that the received signal is given by x = h1s + n, where the power of the data signal s is E(IsI2)= P
Two delta-connvected loads are connected in parallel and powered by a balanced Y-connected system. The small of the two loads draws 10k VA at a lagging Power Factor (PF) of 0.75, and the larger draws 25k VA at a leading PF of 0.80.
Determine the transfer function for a second order band pass filter with following specifications. Chebyschev type with 1 db ripple in the pass band Lower cutoff frequency = 100 radians/sec
A 1 W power source is connected to the input of a directional coupler with C=20 dB, D=35 dB, and an insertion loss of 0.5 dB. Find the output powers (in dBm) at the through, coupled, and isolated ports. Assume all ports to be matched.
A combinational logic circuit has two control inputs, C1 and C2, two data inputs, A and B, and one output, Z. Design a logic circuit that performs the logic operations on the two data inputs as specified in the table below: C1 C2 Logic Function
Consider points P(2,4,3) and Q(1,-5,2) in three dimensional space: Find the position of vectors r1 and r2 for P and Q in terms of unit vectors i,j,k Determine graphically and analytically the resultant of these position vectors Hint: resultant vector..
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