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At a point f in the system, there is an open-circuit fault on phase-a with a voltage across the open-circuit as Vfa , whereas Vfb =Vfc =0. Similar to the calculations of the short-circuit currents by making use of the sequence networks, calculate the sequence components Vfa1, Vfa2, Vfa0 at the fault-point.
Construct a Phasor Diagram to represent the source voltage, source current, voltage drops, VR, and VL across the resistor and the inductor. The diagram does not need to be drawn to scale. However, the values of the items represented must be includ..
Calculate the current in the output of the source before and after the installation of the new device and The temperature sensor output is a voltage which is equal to the temperature sensed by the sensor. Design an electric circuit which can get th..
Calculate the value of vL developed across a 300 H coil when the instantaneous rate of change in component current equals 500 mA/s.
A DTMF signal with duration T seconds can be modeled as a sum of two cosine signals with frequencies frand fc, multiplied by a rectangle function. For example, the DTMF signal for "1" is g1(t) = rect (t/T) * [cos(2pi*687t)+cos(2pi*1209t)]
Explain why the following act lead to hazardous safety conditions when working with electrical equipment. (a) wearing metal rings or bracelets (b) being barefoot,(c) working on damp or concrete floor
Construct the RC differentiator. Set the channel 1 input coupling switch to dc. Next adjust the dc offset, amplitude, and frequency controls of the function generator to produce the input waveform.
Frequency multiplers are used at the transmitter to bring up the frequency level to the transmitter level frequency. Why don't we use the crystal oscillator to generate the transmitter level frequency
Rain affects the downlink from the satellite and the overall CNR ratio in the receiver falls by 6.0 dB to 13.0 dB. What is the bit error rate and the time between errors now?
Assume that an additional inductance can be inserted in series with the load. also assume that the converter has no freewheeling diodes. Calculate the added inductance that leads to a conduction period of 180 degrees when alpha = 30 degrees.
modify the Very Simple CPU to incorporate a new 8-bit register,R, and two new instructions. MVAC performs the transfer Râ†AC and has the instruction code 1110 XXXX; MOVR performs the operation ACâ†R and has the instruction code 1111 XXXX.
Maximum Likelihood to get the above parameters i.e. u0 and var. Now from these 999 points, I take one point out (lets call it i) and add a new point (lets call it j). What will the new mean and variance be?
Compute the power absorbed by an element in a circuit, but for a simple sinusoidal current i = sin(2πt/T) where T = 1 s.
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