1. Circuit Analysis
Ac Steady State — Quiz
Test your understanding of ac steady state with 5 practice questions.
Practice Questions
Question 1
For maximum power transfer in AC circuits, the load impedance Z_L must equal which of the following relative to the Thevenin impedance Z_th?
Question 2
Given a Thevenin equivalent impedance Z_th = 20 + j15 Ω, what load impedance Z_L will maximize power transfer to the load?
Question 3
In the complex power expression S = V I^*, why is the current phasor conjugated?
Question 4
A load has complex power S = 500 + j300 VA. What is its power factor and is it lagging or leading?
Question 5
A load draws P = 1200 W at a power factor of 0.8 leading. Calculate the reactive power Q.