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An electric motor is monitored with an ammeter, voltmeter, and wattmeter, which indicate 5.2A, 120V, and 480W respectively. Assume 60Hz.A) Draw the phasor diagram of the voltage and current,assuming the voltage at zero phase and lagging current.B) What is the reactive power to the motor, including theunits.C) To improve the power factor of the motor, a capacitor ishung directly across the motor terminals. What values ofcapacitance will give unity power factor?
A current source, Is =16.5cos(2300t) A, a resistor R=134Ω, and an inductor, L=0.12H are all in parallel. Assume steady-state conditions exist. At t=3.9ms, find the power being absorbed by the a.)resistor, b.)inductor, c.) sinsuoidal source
The prime mover rotates the armature at a speed of 1000 rpm. Determine the no-load voltage, the full-load voltage, and the torque required by the prime mover at full load if the full-load power required by the load is 3 kW
Several type 741 op-amps, some switching diodes,and +5 V and -5 V power supplies are also available. Draw acircuit diagram showing how an inverting amplifier with a gain of -1.5 can beconstructed with these components only.
Calculate (i) the parallel capacitance C1 that would be required to change the power factor of the total load on the supply to 0.80 lagging and (ii) find the value of the supply current at this power factor.
A semiconductor company has the following costs associated with Product X: - Fixed cost of $1B ($1,000,000,000) - Die cost of $6 at a die yield of 50% - Testing and packaging cost of $3 per die - A final test yield of 90% with a product volume of 500..
Generator 1: 10 MVA, 11 kV, X1s=1.6 per unit on a base using generator A's rated voltage and power Generator 2: 20 MVA, 11 kV, X2s=1.2 per unit on a base using generator B's rated voltage and power Impedance of Line 1
An altimeter can measure 0-100m; using a signal conditioner, this high position is distributed over a voltage range of 0-5V. If an ADC covering the same voltage range outputs 1000 0000, what is the distance measured
Use the fact that x = 2 and y = 0 at t = 0 to determine the appropriate value of the arbitrary constant in the solution set.
Consider a series RLC circuit disconnected from a source at t=0. The circuit components are R=3 ohms, C = 500 F, and L = 1 H. We assume that Vc(0-) = 20 V and i(0-) = -0A. a) Find the natural reponse i(t) for t > 0.
A parallel circuit consists of a source and three resistors in parallel (R1=100-ohm; R2=200-ohm, and R3=300). The resistor of 100? draws a current of 500mA. a) Find the voltage across R1 b) Derive the current through R2 and R3
The voltage across the terminals of a certain circuit and the current entering into its (+) voltage terminal are given by: v = 4 + 12 Cos[377 t + 60 Degree] - 6 Cos[754 t - 30 Degree] i = 5 + 10 Cos[377 t + 45 Degree] + 2 Cos[754 t + 15 Degree] What ..
You are hired to design the front end of an imaging system for studying the boundary shapes of cells, bacteria, viruses, and protein.The front end consists, in this case, of the illumination source(s) and corresponding imaging camera(s).
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