Electrical mathQuestion 939 of 1506

A series R-L circuit has an impedance of 46 Ω and is connected to 230 V AC. What is the current?

0.2 A
5 A
10,580 A
184 A

Show answer

Correct answer: 5 A

I = E / Z = 230 V / 46 Ω = 5 A.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 3.3: Series Resistor-Inductor Circuits

Questions last reviewed: 18 October 2026

Red Seal Electrician Practice needs JavaScript to run. Use its questions for practice. The real pass mark is usually 70%. Check it with your province or territory's apprenticeship office.