Practice Test GeeksBEE - Bachelor of Electrical Engineering Practice Test
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Electric Circuits Flashcards

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

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  1. In nodal analysis, what is chosen as the reference node?

    Answer: The node with the most connections (ground)

    The reference (ground) node is typically chosen as the node with the most connections to simplify the analysis.

  2. Which of the following correctly describes apparent power S in an AC system?

    Answer: S = Vrms × Irms

    Apparent power S = Vrms × Irms in volt-amperes (VA), representing the total power supplied by the source.

  3. A 50 mH inductor carries a current of 4 A. How much energy is stored?

    Answer: 0.4 J

    Energy stored in an inductor: E = ½LI² = ½ × 0.05 × 16 = 0.4 J.

  4. What is the phase relationship between voltage and current in a purely resistive AC circuit?

    Answer: In phase (0° difference)

    In a purely resistive circuit, voltage and current are in phase because resistance does not introduce any phase shift.

  5. When two inductors L1 and L2 are connected in series (no mutual coupling), the total inductance is:

    Answer: L1 + L2

    Series inductors without mutual coupling simply add: Ltotal = L1 + L2.

  6. The bandwidth of a series RLC resonant circuit is defined as:

    Answer: BW = R / L

    Bandwidth BW = R/L (in rad/s), representing the frequency range between the half-power points.

  7. In a delta (Δ) to star (Y) conversion, each Y resistor equals:

    Answer: The product of adjacent Δ resistors divided by the sum of all Δ resistors

    For Δ-to-Y: RY = (R_adjacent1 × R_adjacent2) / (R_Δ1 + R_Δ2 + R_Δ3).