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1. Considering TE modes in a dielectric slab guide, specify the fundamental mode and discuss the associated cutoff condition.
2. Compare the phenomenon at cutoff in a metallic waveguide with that at cutoff in an optical waveguide.
3. Provide a brief description of an optical fiber.
The following tests are performed on a single phase transformer rated 30/6.3 KV , 10 MVA , 50 HZ i- Short circuit test with L.V side short circuited and measurement made on H.V side I = I full load , V = 2700 V , P 80 KW
A sequential circuit has two inputs, w1 and w2, and an output z. Its function is to compare the input sequences on the two inputs. If w1 = w2 during any four consecutive clock cycles, the circuit produces z=1; otherwise, z=0. For example
(1) Can we have Darlington transistor made up of an NPN and a PNP or do the two transistors have to be of the same type (2) Amplifiers has a power gain of 1,000 or 30dB. Where is that power coming from
A 400-kV transmission line has a hot-weather power rating of1400 MVA. If the transmission line is operating in cold weather, itis rated for 2200 MVA (at 400 kV). The transmission line is undercold weather conditions, and the operating voltage is 3..
A 480 V permanent magnet ac motor is consuming 10 kW at power factor 0.80 lagging. Its speed is 1800 rpm. The winding resistance is 0.5 ohms per phase. Core losses are 100 W.
Find the maximum value of K for which the system is stable
A processor has a 32 MB cache and a 64 bit data bus. What is the minimum width of the address bus needed to access the entire cache
Determine the magnitude, radial frequency, frequency, period, and phase for the following waveforms: (a) i1(t)=10cos(40t+170)A (b) v2(t)=34sin(380t+40)V
Design a decade counter (negative edge-triggered counter) using flip flop circuit that can be used to perform binary counting. Show the timing diagram for the input and four outputs of the decade counter.
Suppose X has a continuous uniform distribution over the interval [-1, 1]. (a) Determine the mean, variance, and standard deviation of X. (b) Determine the value for x such that P(fx
Design a system using a counter that produces a 1 output when theinput has been 1 for eight or more consecutive clock times. Use acounter with a clocked active low clear and no enable input.
Assume we have an N-bus power system and we know the N x N zero-sequence, positive-sequence, and negative sequence matrices for the system. Write a MATLAB program to find the system bus voltages during a (a) 3-phase balanced short circuit fault at..
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