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The transformer input is a three wire three phase 120V (line-to-line) system. the transformer output supplies a "Y" connected three phase load with a phase impedance of 600 + j300 ohms. A. sketch the diagram of the system described above. B . For each of the transformer configurations in the table below, find the phase voltage, and phase current at the load, and the input power (real power) supplied by the source.
A unipolar 16 bit ADC measures 0-10 volts full scale. a) What is the minimum resolvable voltage b) What is the percent quantization error c) What is the percent quantization error if a 1 volt max signal is input
The voltage drops across three resistors in series are measured 10V, 15V, and 25V. If the largest resistor is 47 ohms, what is the value of the smallest resistor?
Power factor correction, Three parallel impedances in rectangular form as follows
During an AP, the membrane potential typically moves from -70mV to +20mV and back again. In a cell with 10um radius and 1uF/cm^2, how many charges need to move across the membrane (and back again) to get this 90 mV voltage fluctuation?
A 250hp, 500v dc shunt motor draws a nominal field current of 5A under rated load. The resistance is 90ohms. Calculate the ohmic value and power of the series resistor needed so that the field current drops to 4.5A
Calculate the converter voltage VC1, reactive power, the converter phase current and modulation index.
Charges +Q and +3Q are seperated by a distance 2m. A third charge is located such that the electrostatic system is in equilibrium. Find the location and the value of the third charger in terms of Q.
In a typical mobile communications base station (or cell site), a radio frequency (RF) signal is amplified in the base station and then sent (over cable) to the antennas at the top of the tower.
1. What is the effect of sampling at a higher rate on the error performance of a digital modulation scheme 2. Suppose 16QAM was the modulation scheme used for this lab; would the error performance
looking for a brief theory on touch voltage, step voltage and ground potential rise (GPR). Should include graphical representation and relevant equations to help in understanding.
What is the system's Nyquist sample rate if ω0 = 1000/(2π) rad/sec.?
The voltage across a 0.2 H coil is given. What is the sinusoidal expression for the current?
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