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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.b) Express p(t) in terms of P and Q by choosing i(t)=sqrt(21) cos wt.c) For the case of Z=R+jwL+1/(jwc) interpret the result of part (b) in terms of P,Q and Qc. In particular if w^2*L*C=1,when the inductive and capacitive reactance cancel, comment on what happens.
Find the equivalent impedance for Z1 = 60 L+60 and Z2 = 80 L-45 when these are connected in parallel What are the branch currents and the total circuit current if the supply voltage to the circuit is VS = 240V L0
The springs effect is addressed below. As a relay some contacts are connected to, and move with, the armature. Other contacts are stationary and would make or break contacts as the armature moves.
Let x[k] be a time-domain sequence and X[r] be its DFT. (When written as vectors, unless stated otherwise, always assume the first entry in the vector is at k=0 or r=0, respectively.) If x[k] = [5, 9, 6, 10]
3. For a simulated inductor application, to yield L = 75mH, R1 = 3kohm, and C1 = 200uF, determine required value of R2 4. For a constant current generator, with a saturation voltage = 20V and a current reference of 30mA, calculate RLmin.
Compute the Transfer Equation, The questions are for the equation: y"(t) + 6y'(t) + 34y(t) = 2x'(t) + 11x(t)
We will weigh objects by a strain gauge or R = 120 Ohms, GF= 2.02 mounted on copper column of 6-in. diameter. Find the change in resistance per pound placed on the column. Is this change an increase or decrease in resistance
An ideal C/D converter is followed by a discrete-time LPF which is followed by an ideal D/C converter. The sampling rate is 8000 samples per second. The input analog signal is bandlimited to 3900 Hz. The overall frequency response is required to s..
Electricity is distributed from electrical substations to neighborhoods at 15,000 Volts, to a transformer on utility poles near homes, where is it stepped down to 120 Volts for household use.
1. What is the step response equation for charge time 2. How to determine the current in RLC circuit using the osciscope 3. List three reseasons why the measured value and pspice value for tau are different.
encounter a sequence of birds while walking in the park. The birds can either be blue (B) or red (R). We let X be the random variable corresponding to the number of birds we encounter until seeing the first blue one.
A large reel of paper installed at the end of a paper machine. d1 = 2m, J = 1000kgm^2, n1 = 60rpm, Tension on Paper = 1000N. Calculate: a. Motor power when the reel turns at 60rpm. b. Torque to increase speed to 120 rpm in 10 seconds
by finding the relevant air analysis, determine the partial pressure of nitrogen in the athmosphere at 1.00bar.f a sample of air at this pressure and 10°C was put nto a rigid container and then itd temperature raised to 91°C, what would be the pre..
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