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A series RLC circuit resonates at 1000 rad/sec. If C =20uF, and it is known that the impedence at resonance is 2.4 ohms,compute the value of L, the Q of the circuit, and the bandwitdh.
A 50-cm-long copper wire with a cross-sectional area 1.2286x10^-10 m^2 is used to connect a voltage source and a device. What is the maximum voltage if the current is required to be not bigger than 5A
A 3-phase, 5 MVA, 11 kV, 60 Hz synchronous machine has a synchronous reactance of 10 Ohms per phase and has negligible stator resistance. The machine is connected to the 11 kV, 60 Hz bus and is operated as a synchronous condenser
A number of SCRs, each with a rating of 2000V and 50A are to beused in series-parallel combination in a circuit to handle 11KV and400A. For a derating factor of 0.15, calulate the number of SCRs in series and parallel units.
Design a load resistor (resistance rating and power rating) network to have the transformer operate at full load. Design a second network for half load. You may need to combine several resistors to get the desired value.
The total charge that has accumulated on the positive plate of a capacitor varies with time. The charge follows q=At^2 for the first 4s. a) Find the value of current at t=2,6,9,12,16 s. b) Sketch the current i(t) as a function of time
suppose that A/D-H(z)-D/A system shown uses a sampling rate of 20000 samples/sec , let xa(t)=10cos (2p*500t)u(t) a- give another input signal x1(t) which gives the same samples x(n) b- give another input signal x2(t)
(a) Draw the equivalent circuit. (b) Determine the ohmic value of the impedances. (c) Calculate the source current in amperes and in percent if the generator operating voltage is 3.8 kV (line-to-line) and a reactance of X=125% is connected in seri..
Assume an analog (1st Generation) dual mode mobile phone that is designed to operate in both the 900 MHz and 1900 MHz band which has been allocated for cellular networks. The mobile phone is using a superheterodyne receiver with a 500 MHz IF for b..
Assume a buck converter contains a synchronous rectifier. Does it operate in the discontinous conduction mode at light load Why What does the inductor current waveform look like
THE Number of pumps in use at both a six-pump station and a four-pump station will be determined. Give the possible values for each of the following random variables. a. T = the total number of pumps in use
a single phase 10kVA, 2400/120 V transformer has the following equivalent measurements (referenced to high side): Rc 64k ohms, Xm 9.6k ohms, Re 19.3 ohms, Xe 73.3 ohms. if the secondary load is Zl = 5 angle 30 degrees ohms
Write a program that accepts a date from the user in the form mm/dd/yyyy and then displays it in the form month dd, yyyy, where month is the written name of the month. Store the month names in an array that contains pointers to strings.
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