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Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other 15 kW at 0.9 power factor leading, are connected in parallel and supplied by a balanced three-phase Y-connected, 480-V source.
(a) Determine the source current.
(b) If the load neutrals are connected to the source neutral by a zero-ohm neutral wire through an ammeter, what will the ammeter read?
Both HTTPS and VPN are widely used in today's systems. Clearly they serve quite different purposes. In terms of how they are implemented, what do they have in common? How do they differ?
Biotechnology Questions, Virus-mediated transfer of cellular genetic material from one bacterial cell to another by means of virus particles is called:
Explain the main purpose of an interrupt signal. Give an example of how the interrupt is used. Why should we use pull-up and pull-down resistors on some input or output circuits to the Arduino board?
Mathematically formulate a linear programming model for the problem and formulate and solve a spreadsheet model for the problem.
The pressure head at point A is measured at 25 m (head of water). Assuming the network is situated on a level grade estimate the pressure head in metres at each pipe junction (B, C, D, E, F & G)
Determine the maximum symmetrical interrupting capability of the breaker. Also, explain its significance at lower operating voltages.
Consider theCMOSinverter of Fig. withQN and QP matched and with the input vI rising slowly from 0 to VDD. At what value of vI does the current flowing through QN and QP reach its peak? Give an expression for the peak current, neglecting λn and λp...
1. identify at least four of the key decisions made during the pre-initiating and initiating processes. do you think
Explain the methods of starting a three phase synchronous motor and the effects of variation of excitation with reference to the 'V' curve charecteristic
Water flows through a circular nozzle, exits into the air as a jet, and strikes a plate. The force required to hold the plate steady is 70 N. Assuming frictionless one-dimensional flow, estimate (a) the velocities at sections (1) and (2); (b) the ..
Why are line losses for HVDC cables lower than those of ac cables with similar capacity - What are the characteristics of those locations that prompted the installation of back-to-back HVDC links?
Watch video lecture entitled "Week 4 - RC Circuit in Multisim". Work Practice Problem 8.13 from Chapter 8 to determine the capacitor voltage 'V' for t >0 and record the value in the table.
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