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Electrical Flashcards

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

Read the first 7 Electrical flashcards as text

  1. What is the power dissipated by a 10-ohm resistor carrying 2 amperes?

    Answer: 40 watts

    Power equals I squared times R, so 2^2 x 10 = 40 watts.

  2. An inductor opposes changes in:

    Answer: Current

    An inductor resists changes in current by inducing an opposing voltage.

  3. Which of these is a semiconductor device that conducts in only one direction?

    Answer: Diode

    A diode allows current to flow in one direction only.

  4. What does GFCI stand for?

    Answer: Ground Fault Circuit Interrupter

    A GFCI is a Ground Fault Circuit Interrupter that trips on small leakage currents.

  5. In a three-phase system, the phases are typically separated by:

    Answer: 120 degrees

    Three-phase power has phases offset by 120 electrical degrees.

  6. What happens to bulb brightness if one bulb burns out in a series string?

    Answer: All bulbs go out

    A series circuit breaks completely when any one element opens.

  7. Which tool safely confirms a circuit is de-energized before work?

    Answer: Voltage tester

    A voltage tester verifies the absence of voltage before working.