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A drilling machine is driven by a single-phase induction motor connected to a 110-V rms supply. Suppose that the machining operation requires 1 kW, that the tool machine ihas 90 percent efficiency, and that the supply current is 14 A rms with a power factor of 0.8. Find the AC machine efficiency.
The SV curve can be used to understand the impact of constant power factor shunt compensation support. In this case, the receiving end is injected with a specific amount of reactive power so that the receiving end maintains a constant load power f..
The campus bus uses an embedded system that tracks the number of passengers getting in and those getting out of the bus. Two circuits with laser photodiodes, connected to RB0 (getting in) and RB1 (getting out), are used to track these numbers.
Calculate the numerical value of the mutual capacitance of a square parallel plate capacitor whose dimensions are 1 mm X 1 mm if the two plates are separated by a distance of 2 mm. The relative dielectric constant of the material between the two p..
AC Circit analysis and max power transfer, If the output impedance of a certain driving circuit is 50 Ohm - j10 Ohm, what value of load impedance will result in the maximum power to the load?
The steady-state electron distribution in silicon can be approximated by a linear function of x. The maximum electron concentration occurs at x = 0 and is n(0) = 2.0 x 1016cm-3. At x = 0.012cm, the electron concentration is 5.0 x 1015cm-3.
the power factor for delta-connected three-phase scheme is 0.6 .Consumed from the network with phase voltage 380 V current is (22+1.7) A.How big will be is impedence and resistance of the one bag
Many communication systems connecting computers employ a technique known as "packet transmission." In this type of system, a collection of binary digits (perhaps 1000 of them) are grouped together and transmitted as a "packet."
determine the position of fermi level with respect to the valence level. What type of dopant and how much additional quantity that you have to add to this crystal to move the fermi level by (an energy amount of) KT toward the valence band
A hot-air balloon is rising upward with a constant speed of 3.86 m/s. When the balloon is 9.27 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground
In a MOS cascode amplifier, the cascode transistor is required to raise the output resistance by a factor of 40. If the transistor is operated at Vov = 0.2 V, what must its Va be
A Si IMPATT diode is operated at 140 GHz with a dc bias of 15 V and an average biasing current 150 mA. (a) If the power conversion efficiency is 25% and the thermal resistance of the diode is 4OoCnV.
A 1 Ghz, 1 V/m uniform plane wave is propagating in a lossy material having parameters of σ= 2 (S/m), εr= 9, and μr = 16. Determine the average power lost in propagating across a 100 cm2 surface perpendicular to it
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