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Electronics Practice Test Flashcards

7 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 7 Electronics Practice Test flashcards as text

  1. In a parallel circuit with two equal resistors of 10Ω each, the total resistance is:

    Answer: 5Ω

    For two equal resistors in parallel, total resistance = R/2 = 10Ω/2 = 5Ω.

  2. What does the 'Q' factor represent in an LC circuit?

    Answer: The quality or sharpness of resonance

    The Q (quality) factor describes how sharp or selective a resonant circuit's frequency response is.

  3. Semiconductors have conductivity that falls between:

    Answer: Insulators and conductors

    Semiconductors have electrical conductivity between that of a conductor and an insulator, making them useful for controlling current.

  4. What happens to the resistance of a conductor as its temperature increases?

    Answer: It increases

    For most conductors, resistance increases with temperature due to increased atomic vibration impeding electron flow.

  5. Which of the following is an example of an active electronic component?

    Answer: Transistor

    A transistor is an active component because it can amplify or switch signals and requires a power source.

  6. A 100W light bulb operating at 120V draws how much current?

    Answer: 0.83A

    Using P = V × I, rearranged: I = P/V = 100W / 120V ≈ 0.83A.

  7. Which type of coupling uses a capacitor to pass AC signals while blocking DC between amplifier stages?

    Answer: Capacitive coupling

    Capacitive (RC) coupling uses capacitors to pass AC signals while blocking the DC bias between stages.