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Find the circuit current i in polar
(a) R=3 ohms v= 15 sin(wt +10 degrees)
(b) xl=7 ohms v= 56 sin (wt+10 degrees)
(c) Xc=100 ohms v=25 sin (wt-20degrees)
(d) R= 5.1 ohms v=4×10(-3) sin (wt-120degrees.
A He-Xe mixture containing 0.75 mole fraction of helium is used for cooling of electronics in an avionics application. At a temperature of 300 K and atmospheric pressure, calculate the mass fraction of helium and the mass density.
use the method of recursion to solve the following problems: compute y[n] for n = 0,1.2, when x[n] = 0 for all n andy[-l] = 2. Compute y[n] for n = 0,1.2, when x[n] = u[n]and y[-l] = 0. Compute y[n] for n = 0,1.2, when x[n] = u[n]and y[-l] = 2.
A continuous line of charge lies along the x-axis, extending from x= +xo to positive infinity. The line carries positive charge with a uniform linear charge density lambda not. What are (a) the magnitude
Let us consider the detection of the framing bit in the T1 carrier by the receiver. Assume that the data bits in a frame assume values of 1 and 0 with equal probabilities of 0.5 and independent of each other. The framing bit alternates between 1 a..
Two soccer players start from rest, 34 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.42 m/s2. The second player's acceleration has a magnitude of 0.41 m/s2.
What are the most common insulators used for extremely high voltages. Explain your answer with, at least, two points foreach insulator. Hint. they can withstand much highertemperatures than rubber insulation.
The transfer function (TF) of a system is given below. Find its impulse response inn domain. Hint: First multiply the TF by the z-transform of input-or x(z)-or the z-transform of unit impulse. Factor the denominator and then expand.
A common-source FET amplifier has an RD = 1.0 k ohms. How much does the gain change when a load resistance of 1.0 k ohms is capacitively coupled to the drain
Despite the advantages to the synchronous alternator there is a downside and this has to do with keeping the load balanced on such a machine. Why is balancing the load so important to the synchronous alternator?
What value resistor is necessary for the circuit?
If the arm has an angular velocity co= 0.4 rad/s and an angular acceleration of a = 0.8 rad/s' at the instant 8 = 30°, determine the force of the arm AO on the ball and the normal force of the semicylinder on the ball. Neglect friction and the siz..
What is the FM modulation index if deviation in carrier frequency is +/- 60 KHz, and maximum modulating frequency is 15 KHz?
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