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Science & Technical

Hard

EI

Electronics Information

Circuits, current and components

Basic electricity and electronics: current, voltage, resistance and Ohm's law, circuits (series vs parallel), components and their symbols, and electrical safety. Key for electronics, avionics and communications jobs.

Duration

~9 min

Length

16 questions

Difficulty

Hard

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New to the ASVAB? Read the complete guide

Every subtest explained, how the AFQT and line scores work, and how to study.

What to expect

Four-option questions, some with a small circuit diagram.
On the real paper ASVAB: 20 questions in 9 minutes. Here: 16 questions.
An explanation that shows the formula or the rule each time.

What it measures

Ohm's law and basic circuit calculations
Series vs parallel circuits
Components, symbols and units (volts, amps, ohms, watts)

Instructions

1Learn Ohm's law cold: V = I × R (and P = V × I).
2Know the units and their symbols (V, A, Ω, W).
3Understand how series and parallel change resistance and current.

Tips

Memorise the common component symbols (resistor, capacitor, diode, battery).
Conductors vs insulators — know examples of each.
Practise a few Ohm's-law calculations until they're instant.

Format: Technical subtest · electronics · 4-option MCQ · real test 20 Q / 9 min

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