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Sinusoids And Phasors
Sinusoids are defined as the mathematical waveforms that are used to describe the nature of periodic oscillations.
Circuit Theory
Electric circuits are a network that comprises of a closed-loop, which helps in providing a return path for the current through a switch. When the switch is activated, the load operates, and the current accepts a path to finish the circuit at a low potential level from the opposing high potential level. Electric circuits theory is a linear analysis that helps in establishing a linear relation of voltage and current for R (resistance), L (inductance), and C (capacitance).
The circuit with 3 parallel loads is described as follows. The load draws an average power of 1.8 kW (absorbing) and is behind
lagging power factor 0.8. The load 2 draws 20 kVA and the leading power factor is 0.6. If the load is 3;
3 Z j is an impedance of '2.5 5.0'. If the source frequency is 60 Hz, derive the steady-state equation for () V t s.
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