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Model lightning strikes to a power line during a thunderstorm as a Poisson impulse process. Suppose the number of lightning strikes in time interval has a mean rate of arrival given by , which is one strike per 3 minutes.
(a) What is the expected number of lightning strikes in 1 minute? in 10 minutes?
(b) What is the average time between lightning strikes?
The line transfer parameters are : A=D=0.9; B=j200 & C=j0.002. a0. Calculate the sending and voltage , current and voltage regulation. using the line loadability equation, calculate the line surge impedance loading ' SIL" and the normal operating ..
a. Calculate the optimum refractive index of a single layer thin film antireflection coating for the silicon air interface at this wavelength. b. Calculate the optimum thickness of the layer.
For the circuit of given figure, find Vab if (a) k = 0 and (b) k = 0.01. - Do not use network theorems to simplify the circuit prior to solution.
A 6600V/230V, 50Hz single phase core type transformer has a core section 25cmX25cm. Calculate the approximate number of primary and secondary turns if the flux density in the core should not exceed 1.1Wb/m2.
A three-phase load is Y-connected. The load has a phase voltage of 139 V and a phase current of 49 A. Each phase of the load consumes 5.1 kW of power. (A) Sketch and label the load. Find (b) the line voltage, (c) the line current, and
Properties of Electricity Discuss a practical application of a decade resistance box. Explore alternative variable resistors available to the engineers and discuss their accuracy and resolution? (Initial post for this question must be at least 75 wor..
A 220 V, 1500 rpm, 11.6 A (armature current) separately excited motor is controlled by a single phase, full wave SCR converter. The armature resistance of the motor is 2 ohm. The ac source voltage is 230 V (rms) 60 Hz.
Telephone signals are typically sampled at 8000 Hz. a. What is the time interval between samples b. What is the highest frequency that can be recovered from a sampled signal
given voltage source of 120V, a 6ohm resistor and 8ohm capacitance are connected in parallel with an unknown impedance find impedance of the unknown load given real power is 5000W and reactive power is 2kvar.
With the help of a diagram explain the principles of flapper /nozzle displacement sensor.
With the 1s complement scheme, how does the receiver detect errors? Is it possible that a one bit error will go undetected? How about a two bit error?
Consider a 4 input, 1 output digital system (W,X,Y,Z, and f respectively) . Design a POS circuit with any number of inputs such that f(W,X,Y,Z) = M(0,2,4,9,13) + D(6,14).
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