Practice Test GeeksEIT - Engineering in Training Practice Test
← All EIT Flashcard Decks

Electrical Circuits Flashcards

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

Read the first 6 Electrical Circuits flashcards as text

  1. According to Ohm's Law, what is the current through a 10Ω resistor with 20V across it?

    Answer: 2 A

    Ohm's Law: I = V/R = 20/10 = 2 A.

  2. What is the total resistance of three 6Ω resistors connected in parallel?

    Answer: 2 Ω

    For n equal resistors in parallel: R_total = R/n = 6/3 = 2 Ω.

  3. Kirchhoff's Current Law (KCL) states that:

    Answer: Current entering a node equals current leaving the node

    KCL is a statement of charge conservation: the algebraic sum of currents at any node equals zero.

  4. What is the impedance of a 100Ω resistor in series with a capacitive reactance of 100Ω?

    Answer: 141.4 Ω

    Z = √(R² + Xc²) = √(100² + 100²) = √20000 ≈ 141.4 Ω.

  5. The power factor of a purely resistive circuit is:

    Answer: 1

    A purely resistive circuit has voltage and current in phase, giving a power factor of cos(0°) = 1.

  6. What is the energy stored in a 4H inductor carrying 3A?

    Answer: 18 J

    Energy stored in an inductor: W = ½LI² = ½(4)(3²) = ½(4)(9) = 18 J.