Electrical Engineering Questions and Answers October 31, 2019

In a Chord ring using m = 9, nodes with the following peer ids (or node ids) join the system: 1, 12, 123, 234, 345, 456, 501. The successor of node 501 is:

A P-N junction diode with T = 100ns conducts a forward-bias current I D = 4.3 mA. At time t = 0, the circuit conditions change, so that a reverse-bias voltage V E = 20V is connected in series with the diode and resistor R = 1 k.

A PN junction diode with tT 100 ns conducts a forwardbias current Ip 4.3 mA. At time i 0, the circuit conditions change, so that a reversebias voltage VE 20 V is connected in series with the diode and a resistor R 1 k2. (a) Because of the strong discharging current ( 20.7 V1 k2 20.7 mA), the contribution of 3D 3D the recombination to the

The function f(t) is periodic with period T = 4s. Between t = 0 and 4s, the function is described by: (a) Plot f(t) between t = - 8s and t = 8s, (b) Determine the exponential Fourier coefficients F n of f(t) for n = 0, n = 1s and n = 2s. (c) Using the result of part (b), determine the compact-form Fourier coefficient C 0 ,C 1 ,C 2 and C 3 .

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A 50 Hz, 500 MVA, 66 kV, Y-connected three phase synchronous generator is in operation with an internal voltage of 1.0pu. Assume that a three phase fault occurs at its terminal and the circuit breaker operates at 2 cycles. Neglect the saliency. Machine parameters in per unit are given as follows-

A 50 Hz, 500 MVA, 66 kV, Yconnected three phase synchronous generator is in operation with an internal voltage of 1.0pu. Assume that a three phase fault occurs at its terminal and the circuit breaker operates at 2 cycles. Neglect the saliency. Machine parameters in per unit are given as follows Xa 0.12 Ta Xa 1.0 1.1s 0.25 Ta 0.04 s i) Determine

Consider a communication system in which the random variable Y is transmitted through a channel with a random gain W, so that the received variable X = WY. Assume that Y and W are independent, and that both of them are uniformly distributed in the range [1,2] a) suppose you are sitting at the receiver and want to estimate the transmitted value Y

Consider a communication system in which the random variable Y is transmitted through a channel with a random gain W, so that the received variable X = WY. Assume that Y and W are independent, and that both of them are uniformly distributed in the range [1,2] a) suppose you are sitting at the receiver and want to estimate the transmitted value Y