Please answer quickly "Usually and by convention in computation, a practical inductor has both inductance and internal resistance connected in parallel."  True  False   "To perform phasor multiplication, its better expressed the phasors in polar form and then get the product of all the individual magnitudes (amplitudes)and get the difference of all the individual arguments (phase angles)."  True  False   "In time domain represenatation of a signal, a signal with an expression of 220 cos (377t -180) is also equal to +220 cos (377t)."  True

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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).