BEE Bachelor of Electrical Engineering Fundamental Circuit Analysis Questions and Answers Flashcards
6 cards from real BEE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 BEE Bachelor of Electrical Engineering Fundamental Circuit Analysis Questions and Answers flashcards as text
A capacitor of 100 μF is fully charged to 50V. How much energy is stored?
Answer: 0.125 J
Energy stored is E = ½CV² = 0.5 × 100×10⁻⁶ × 50² = 0.125 J.
In a balanced Wheatstone bridge, what is the current through the galvanometer?
Answer: Zero
A balanced Wheatstone bridge has equal voltage at both midpoints, so no current flows through the galvanometer.
What is the phase angle between voltage and current in a purely inductive AC circuit?
Answer: Voltage leads current by 90°
In a purely inductive circuit, the voltage across the inductor leads the current through it by 90°.
Three identical 9Ω resistors are connected in delta. What is the equivalent resistance of each arm when converted to a star (Y) configuration?
Answer: 3 Ω
For a balanced delta-to-star conversion, each star resistor equals R_delta/3 = 9/3 = 3Ω.
A practical voltage source has an EMF of 12V and an internal resistance of 0.5Ω. What terminal voltage does it deliver to a 5.5Ω load?
Answer: 11 V
Current is 12/(0.5+5.5) = 2 A, and terminal voltage is 12 − 2×0.5 = 11 V.
Which method is most efficient for analyzing a circuit with multiple meshes but only one current source?
Answer: Nodal analysis
Nodal analysis is more efficient when current sources are present because they directly define node voltages or supernodes.