Explain what reactive power Q flowing into a one port is in terms of sinusoids v

Question

Explain what reactive power Q flowing into a one port is in terms of sinusoids v(t) and i(t) and phasors V and I and explain what Q means physically (you may use an example). The instantaneous power into a one port containing resistors and inductors has maximum value 100(1 + ) W and minimum value 100(1 - ) W. Find the real and reactive powers P and Q into the one port. Suppose the one port is a series RL circuit and the one port voltage has amplitude 100 V. Calculate R. L and the inductor current I. (Use 60Hz for the frequency.) Calculate the inductor current and voltage as functions of time and hence the instantaneous power into the inductor. Confirm that the amplitude of the instantaneous power into the inductor is Q. What assumptions about the system are we tacitly making for the calculations in (a).(b) and (c)? Demonstrate with a simple one phase AC example that adding a small parallel capacitor to a series or parallel RL load raises the load voltage VL. (Model the g

Explanation / Answer

Q=visin

"The power that continually bounces back and forth between the source and the load is known as reactive power (Q). Reactive power represents the energy that is first stored and then released in the magnetic field of an inductor, or in the electric field of a capacitor.

i will explian reamaining part at night..

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