Red Seal Electrician Practice
AC theoryQuestion 996 of 1506

What is the first step when you analyze an AC circuit with resistors, inductors and capacitors?

  1. Change every value into watts
  2. Change each part into an impedance
  3. Set the frequency to zero first
  4. Remove the reactive parts from the circuit
Show answer

Correct answer: Change each part into an impedance

Once all parts are impedances, the DC methods can be used with complex numbers.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 5.6: R, L and C Summary

Practice ac theory

Questions last reviewed: 18 October 2026