Free ASVAB Electronics Information Practice Test
Practice the ASVAB (Armed Services Vocational Aptitude Battery) Electronics Information section with 10 free questions, each with a clear explanation and a Scout tip. No sign-up needed. Electronics Information doesn't count toward your AFQT, but it's used in line scores that decide which military jobs you qualify for.
What Electronics Information Covers
Electronics Information (EI) covers basic electricity and electronics:
- Current, voltage, and resistance, and Ohm's law (V = I × R).
- Series and parallel circuits.
- Common components: resistors, capacitors, diodes, transformers.
- Electrical safety and units.
10 Free Practice Questions

What is the unit of electrical resistance?
(The interactive quiz loads here: 10 questions, instant feedback, explanations.)
How to Score Higher on Electronics Information
- Memorize Ohm's law (V = I × R); many questions come back to it.
- Know the units: volts, amps, ohms, watts.
- Series circuits add resistance, and parallel circuits split the current.
Keep Practicing
- Try another subject on the ASVAB practice test page.
- Estimate your score with the free AFQT practice test.
- Learn it step by step in the ASVAB Scout Study Guide.
ASVAB Scout is an independent study resource, not affiliated with or endorsed by the U.S. Department of Defense or any branch of the military. Requirements can change; confirm anything you're making a decision on with a recruiter or [officialasvab.com](https://www.officialasvab.com).