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A dc motor is driving a constant-torque load. If the armature voltage of the motor increases by 20%, calculate the percentage change in no load speed.
A balanced three-phase inductive load is supplied in steady state by a balanced three-phase voltage source with a phase voltage of 120Vrms. The load draws a total of 10kW at a power factor of 0.9.
A resistance of 40 ohms is connected in series with an inductance of 0.12 H. Calculate the current, power, reactive power, apparent power, and power factor when the combination is connected to a 60 Hz, 120 V source.
Determine the system impulse response in time domain and draw its root locus and comment on system stability.
1. a painter is standing on a work platform that is 27 feet above ground level. for fall protection the workers
The energy (power) in Watts in an electrical circuit is described by P = VI, where V is volts and I is current
art of the wave enters an ideal dielectric with e = fo*er = 4 x 10-11 F/m. Calculate the wavelength, wave number, frequency, angular frequency, and velocity of this orange light within the dielectric. Assume the material to be nonmagnetic.
Describe the characteristics of the series RC filter circuit with the output across the resistive component. Distinguish the pass and stop bands with reference to the cutoff frequency. Also, state what happens to the circuit complex impedance at t..
A temperature of 200 oC is measured using a thermopile having three pairs of measuring junctions as shown in the figure below. The reference junction temperatures are set at room temperature of 25 oC.
The owner wants to an addition to the building in the above question which will have a large kitchen and dining area. It will add an overall 120 kW of kitchen loads (pf = 0.95 lag). What is the new profile of the total building load in terms of P,..
The component generated at the symbol frequency can then be phase tracked by a PLL in order to generate the symbol synchronization, as illustrated by the following MATLAB simulation:
Terry forms the Camphor Corporation during 2010. She transfers property with a value of $700,000 to Camphor Corporation in exchange for 100 percent of the stock in the corporation. Terry's basis in the property transferred was $350,000 and the corpor..
Explore the effect of variations in q and h by plotting temperature distributions, T(r), for a range of parameter values. Suggest an envelope of acceptable operating conditions.
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