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Basic Electrical Principles Flashcards

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

Read the first 7 Basic Electrical Principles flashcards as text

  1. A circuit has a voltage of 120V and a resistance of 40 ohms. What is the power dissipated?

    Answer: 360 W

    Power = V²/R = 120²/40 = 14400/40 = 360 W.

  2. Which type of circuit provides multiple paths for current to flow?

    Answer: Parallel circuit

    A parallel circuit provides two or more separate paths through which current can flow simultaneously.

  3. What happens to total resistance when resistors are added in parallel?

    Answer: Total resistance decreases

    Adding resistors in parallel always decreases total resistance because more current paths are available.

  4. What is the unit of electrical capacitance?

    Answer: Farad

    Capacitance is measured in farads (F), named after Michael Faraday.

  5. In an AC circuit, what does 'frequency' describe?

    Answer: The number of complete cycles per second

    Frequency is the number of complete AC cycles occurring per second, measured in hertz (Hz).

  6. Two 10-ohm resistors are connected in series. What is the total resistance?

    Answer: 20 ohms

    Series resistors are simply added: 10 + 10 = 20 ohms.

  7. What is the standard frequency of AC power supplied in the United States?

    Answer: 60 Hz

    The US standard AC power frequency is 60 Hz, meaning 60 complete cycles per second.