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1. A three-phase generator is producing power for a balanced load. Each phase provides a voltage of 690 V and a current of 1000 A. The angle between the voltage and current in each phase is 20°. What is the total real power and reactive power produced by the threephase system?
2. If the three-phase power in Problem 1 is transmitted at 34.5 kV over a transmission line with a resistance of 10 ? in each phase, what is the total power loss in the transmission line?
a bar of n-type germanium and we place an E field going to the right across it and create a pulse of excess minority carriers (holes) in the center of the bar at time t=0. In other words we are performing the Haynes Shockley Experiment on the bar
A small circular parabolic reflector, often referred to as dish, is now being advertised as a TV antenna for direct broadcast. Assuming the diameter of the antenna is 1 meter, the frequency of operation is 3 GHz
Design lowpass IIR filter with the following specifications: Filter order = 2, Butterworth type Cut-off frequency=800 Hz Sampling rate =8000 Hz Design using the bilinear z-transform design method
An amplifier represented with an input resistance of 10k ohm, an output resistance of 1k ohm, and the open circuit voltage gain of 1000 V/V is connected to a signal source of 10 mV peak amplitude with an internal resistance of 100k ohm.
Discrete sequence plot in Matlab, Consider the following formula, x[n] = x[n-1] + x[n-3] n>=3, find the rest of the sequence for 0
Describe the operation of the series RC circuit. The discussion must address phase angle relationships of current and voltage. The answer must include the effect of source frequency on the voltage drops across the resistor and the capacitor at ver..
The power amplifier in a home theater amplifier has an output power of 200 watts. Assuming a Class B amplifier with the maximum theoretical efficiency is used, find the DC power delivered to the amplifier.
Measurements show that for a particular arrangement of the equipment and at a particular amplifier setting, the system will howl if 1% of the output power is fed back to the microphone. Estimate the power gain of the P.A. amplifier in decibels.
an electric kettle is required to heat 0.6 litre of water from 10 degrees celcius to boiling point in 5 minutes,the supply voltage being 240 volts. The efficiency of the kettle is 87%. Assume the specific heat capacity of water to be 4190J/kg.K
A cam is to be desinged for an automated part loader.Using the motion equations,construct a chart that tabulates follower displacement versus time and cam rotation. Also plot this data when the prescribed motion for this application.
Are the systems stable For functions above, determine the steady state response for a step input. Determine the natural frequency , and the damping ratio and sketch the step response.
Two three-phase loads are y-connected across a 300 Volt three phase line. One load draws 10kW at a p.f. of 0.9 leading, and the second load draws 8kW at a p.f. of 0.6 lagging. V(line-neutral)=300V/sqrt(3)=173.21V
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