Practice Test GeeksASVAB - Armed Services Vocational Aptitude Battery Practice Test
← All ASVAB Flashcard Decks

ASVAB Electronics Fundamentals and Circuits Flashcards

6 cards from real ASVAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 ASVAB Electronics Fundamentals and Circuits flashcards as text

  1. What is the unit of measurement for electrical current?

    Answer: Ampere

    Electrical current is measured in amperes (amps). One ampere represents the flow of one coulomb of charge per second through a conductor.

  2. According to Ohm's Law, what is the relationship between voltage, current, and resistance?

    Answer: V = I × R

    Ohm's Law states that voltage (V) equals current (I) multiplied by resistance (R). This fundamental relationship is the basis for most electrical circuit analysis.

  3. What is the function of a resistor in a circuit?

    Answer: Limit the flow of current

    A resistor opposes the flow of electrical current, limiting how much current passes through a circuit. It converts electrical energy to heat energy in the process.

  4. In a series circuit with three resistors of 10Ω, 20Ω, and 30Ω, what is the total resistance?

    Answer: 60Ω

    In a series circuit, total resistance is the sum of all individual resistances: R_total = 10 + 20 + 30 = 60Ω.

  5. What is the difference between AC and DC current?

    Answer: AC changes direction periodically; DC flows in one direction only

    AC (Alternating Current) periodically reverses direction, typically at 60 Hz in the US. DC (Direct Current) flows in one direction only. Batteries produce DC; power outlets provide AC.

  6. What is a semiconductor?

    Answer: A material with conductivity between a conductor and an insulator

    A semiconductor is a material (like silicon or germanium) whose electrical conductivity falls between that of a conductor and an insulator. Its conductivity can be modified by adding impurities (doping).