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Three loads are connected in parallel to a 120<0degrees V rms source. Load 1 absorbs 60 kVAR at pf=0.85 lagging, load 2 absorbs 90 kW and 50 kVAR leading, and load 3 absorbs 100 kW at pf=1. (a) Find the equivalent inpedance. (b) Calculate the power factor of the parallel combination. (c) Determine the current supplied by the source.
on an oscilloscope grid, the vertical axis is set to 1V/division, and the horizontal (time) axis is set to 1 ms/division.The postion of the CRT trace has been adjusted so that zero volt(ground) corresponds to the horizontal line in the center ofth..
A battery has a short-circuit current of 20 A and an open-circuit voltage of 12 V. If the battery is connected to an electric bulb of resistance 2 ohm, calculate the power dissipated by the bulb.
A current amplifier with R=9 kohm Ro=1 kohm and Ais=100 is connected between a 8 V voltage source with a source resistance of Rs=1 Kohm and a load resistance of RL=9 Kohm.
define hue (h) in the h-i-s coordinate system. outline how the formula for computation of hue from R-G-B coordinates of a color point may be derived (detailed derivation is not required)
An ideal voltage source produces a dirac delta function, an impulse spike to a series resistor, capacitor combination. R = 10.000 ohms, C = 0.039 uF. Calculate the initial voltage that the capacitor charges to at t = 0+.
Given the following IIR system with zero initial conditions: y[n]=0.2 x[n]- 0.5y[n-1] -0.06y[n-2] a)find the first five samples of the impulse response b) find the first five step response
A Si sample is doped with 106cm-3 boron atomsand a certain number of shallow donors. The Fermi level is.36eV above Ei at 300K. What is the donor concentration Nd
a) Calculate the wind force on the turbine for a 5 mph wind. b) What is the force if the wind speed is tripled? c) Calculate the torque on the tower for the cases of the 5 and 15 mph wind velocities
Let a series R-L-C network be connected to a source voltage V, drawing a current I. a) In terms of the load impedance Z=Z at angle of Z, find expressions for P and Q from complex power considerations.
Construct a plot ofsilicon resistivity versus impurity concentration at T = 300K.Include curves for both n-type and p-type silicon over the range of10^13/cm^3
1. Determine the peak-to-peak current ripple in the output inductor for a forward converter and determine the output voltage ripple of the converter. We know the following parameters: duty cycle d, input voltage Vin, turn ratio.
A signal is bandlimited to 20kHz. The band between 16 and 20 kHz is corrupted by noise such that the information is unrecoverable. Determine the analog lowpass filter maximum frequency to eliminate corrupted noise.
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