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Computer Data Sheet A manufacturer's data sheet for a notebook computer lists the power supply requirements as 7:5 A @ 5 V, 2 A @ 15 V, 2:5 A @ -15 V, 2:25 A @-5 V, and 0:5 A @ 12 V.
The data sheet also states that the overall power consumption is 115 W. Are these data consistent? Explain.
A 20-hp, 250 V shunt-DC motor has an armature circuit of 0.22 ohms and a field resistance of 170 ohms . At a low-load, the speed is 1200 rpm and the armature current is 3 A. At full-load, the current is 55 A, and the flux is reduced by 6%
A uniform surface charge density of 20 [nC/m^2] is present on the spherical surface r=.6 cm in free space. (a) Find the absolute potential Φ at P(r =1cm,θ=25,φ=50). (b) Find Vab, given points a(r=2cm,θ=30,φ=60), and b(r=3cm,θ=45,φ=90)
The electric field of a uniform plane wave propagating in lossless isotropic medium is E(x,t) = 60(pi)cos(3 10 t + 4x) ay V/m. The magnetic field at point (0,0,0) when t = 0 is 1A/m. The unit of t is second and the unit of x is meter.
The turns ratio (n3/n1) is chosen such that the converter produces the required output voltage at a transformer duty cycle of D=0.4. For each case determine numerical values for the turns ratio n3/n1 and for the efficiency.
Evaluate the linearity of the graph. What if the expected change in strain gauge resistance is ±20 Ω?- Evaluate the linearity of the graph again under this condition.
What is the energy in joules stored in the capacitor below, The capacitor is shown with 10 volts on each side of it (plus on the left of the capacitor, - on the right), and C = 20 microfarads.
The distance between two stations in a 10 Mbps LAN using CSM/CD multiple access method is 2,000 meters. Station A sends a long frame first and three micro seconds later, C starts sending a long frame.
What will be the phase shift of a 10-MHz sine wave after it travels a distance of ten feet on the line?
A cell-phone tower has a circular coverage area of radius 10 km. If a call is initiated from a random point in the coverage area, find the probability that the call comes from within 2 km of the tower.
At a design review for your first engineering project, you presentthe project to a panel of three senior engineers who will vote onwhether your project should be funded or not. The senior engineerswill vote using an electrical switch with two posi..
He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the minimum pulling force that the clown must exert to yank his feet out from under himself?
determine the required value of R1.
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