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Q1. A 1000-pF capacitor, a 1-mH inductor, and a current source of 2 cos106t mA are in series. The capacitor voltage is zero at t = 0. Find the energy stored (a) in the inductor at t = 0; (b) in the capacitor at t = 1.571 μs; (c) in both inductor and capacitor together at t = 1 μs.
Q2. A 5-μf capacitor (C = 5 x 10-6) has an initial voltage of V0 volts at t = 0 when the current waveform shown is applied. (a) Find vc(t) for v0 = 0.
a series-tuned resonant circuit operates at a resonant frequency of 1 mhz and contains a 0.1 microfarad capacitor and
for the polynomal function P(x) = x^2 / 3 + x^2 - 8x + 1 find all relative extrema, the inflection point, the interval on which P is concave down
A trough is 8 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x^{8} from x=-1 to x=1 . The trough is full of water. Find the amount of work in foot-pounds required to empty
A 440-V three-hase Y-connected synchronous motor has a synchronous reactance of 1.5 ohms per phase. The field current has been adjusted so that the torque angle is 28 degrees when the supplied power to the motor is 90kW.
What is correct symbol rate (pulse rate) for this link? What is the bit rate with BPSK modulation? What is the bit rate with QPSK modulation?
What is the collector-emitter voltage for the transistor in Fig. P5.58(a) if IS = 5 × 10-16 A, αF = 0.99, and αR = 0.5?
A certain 11 V dry-cell battery, completely discharged, requires a current of 100 mA for 1.2 hr to completely recharge. What is the energy storage capacity of the battery, assuming the voltage does not depend on its charge status?
how many roots of the following two polynomials are in the right half plane and left half plane P(s)= s^5 + 3s^4 + 5s^3 + 4s^2 + s + 3 P(s)= 3s^7 + 9s^6 + 6s^5 + 4s^4 +7s^3+ 8s^2+2s+6
Describe what cross-over distortion is. What types of amplifiers is itmost prevalent in. How can it be controlled. When is itmost troublesome. How might it's level be specified inan amplifier design.
A thin conducting wire of length 3w forms a planar equilateral triangle. A Direct current I flows in the wire. Find the magnetic flux density at the center of that triangle.
In electric motor delivers 23 hp of mechanical power into a load it runs on single phase 440 VAC and is 83 percent efficient its running power is .77 and the starting current is 70 percent higher than its running current
With the switch closed, find the real power P, reactive power Q, and apparent power S supplied by the generator. What is the power factor of the generator?
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