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A 10 H inductor is connected in series with a 1.0k(ohm) resistor and a switch which closes at t=0s, Determine the voltage across the inductor and the current through the inductor for t>0 if the inductor has an initial current of 10 A.
The impurity is removed with practically no loss of carrier liquid. By local ordinance, a maximum of 100 ppm is allowed in the discharge to a nearby river. The treating process removes all but 10 ppm.
Two teams of workers assemble automobile engines at a manufacturing plant in Michigan. Quality control personnel inspect a random sample of the teams assemblies and judge each assembly to be acceptable or unacceptable.
The sinusoidal flux in the core of a transformer is given by φ = 0.002 Sin 377t Wb. This flux links a primary winding of 100 turns. Determine the induced voltage in the coil as a function of time.
Draw a circuit diagram to show how the CT, VT and meters are connected into the load circuit. Neglecting instrument and transformer errors, calculate the load kVA and power factor if the voltmeter, ammeter and wattmeter indicate values of 200 V, 2..
a. Determine the voltage regulation, the load resistance, the armature resistance, and the developed torque at full load. b. The speed of the generator is decreased to 1200 rpm, and the load resistance is unchanged.
Consider a pressure relief system. If consists of two values in parallel and achieves an availability of 0.95 when the valves are tested on a staggered basis, each valve being tested every 4 months. Estimate the failure rate of the values.
A power company supplies 75 kW to an industrial load. The load draws 120 Arms from the transmission line. If the load voltage is 440 Vrms and the load power factor is 0.8 lagging, find the losses in the transmission line.
A long narrow rod has an atomic density of 5*1028 m-3. Each atom has the polarizability of 10-40 F m2. Find the internal electric field when an axial field of 1 V/m is applied.
A 3-phase, 440VAC, 6-pole, 60Hz, wye connected induction motor takes 30KVA at .8 power factor lagging, and runs at a slip of 3.5% at full load. The stator copper losses are 500W, and the rotational losses are 350W.
A simple low-pass discrete-time filter is characterized by the following linear difference equation: y[n] = f y[n-1] +(1- f) x[n] , with 0 1 Draw and clearly label an adder-gain-delay diagram for the filter. using the same difference equation from a..
Shunt capacitors are installed at the receiving end to improve the line performance. The line delivers 70 MVA, 0.8 lagging power factor at 64 kV. Determine the total Mvar and the capacitance per phase of the Y-connected capacitors.
Design a combinational circuit with four inputs, x,y,w, and z, and four outputs: A, B, C, and D. When the binary input value in decimal is 3,8,12 or 15, the binary output value is one less than the input value, otherwise it is one greater than the..
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