TL;DR
Master the analysis of series, parallel, and combination circuits including voltage, current, and resistance relationships. Circuit analysis is the foundation of electrical troubleshooting and a core exam topic.
Free Series & Parallel Circuits Practice Questions
Journeyman Electrician License Exam · Electrical Theory & Trade Math
This module covers Series & Parallel Circuits as part of the Electrical Theory & Trade Math section, testing your understanding of core concepts and their practical application.
| Exam | Journeyman Electrician License Exam |
| Pass Rate | 55% |
| Duration | 240 minutes |
| Module | Series & Parallel Circuits |
Why Series & Parallel Circuits matters
Series & Parallel Circuits is a commonly tested topic on the Journeyman Electrician License Exam because it covers fundamental knowledge required for competent professional practice.
Sample Practice Questions (5)
1. A parallel circuit has three branches drawing 3A, 5A, and 7A respectively. Per Kirchhoff's Current Law, what is the total current supplied by the source?
- 5A
- 7A
- 15A
- 105A
2. In a series circuit with three resistors drawing current from a 120V source, the total resistance is 24 ohms. What is the current flowing through each resistor?
- 3A
- 5A
- 10A
- 4A
3. A parallel circuit has two branches. Branch 1 draws 10A and Branch 2 draws 15A. What is the total current supplied by the source?
- 25A
- 12.5A
- 5A
- 6A
Want more practice like this?
Start practicing free →4. In a parallel circuit supplied by a 240V source, three branches have resistances of 20 ohms, 30 ohms, and 60 ohms. What is the total current drawn from the source?
- 24A
- 12A
- 2.18A
- 36A
5. A 120V series circuit has R1 = 6 ohms, R2 = 10 ohms, and R3 = 8 ohms. What is the voltage drop across R2?
- 30V
- 50V
- 40V
- 60V
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