BEE BEE Bachelor of Electrical Engineering Fundamental Circuit Analysis Questions and Answers 3

Question 1

A capacitor of 100 μF is fully charged to 50V. How much energy is stored?

Accepted Answer

0.125 J

Answer

0.250 J

Answer

0.050 J

Answer

0.500 J

Question 2

In a balanced Wheatstone bridge, what is the current through the galvanometer?

Accepted Answer

Zero

Answer

Maximum

Answer

Equal to the source current

Answer

Dependent on galvanometer resistance

Question 3

What is the phase angle between voltage and current in a purely inductive AC circuit?

Accepted Answer

Voltage leads current by 90°

Answer

Current leads voltage by 90°

Answer

They are in phase

Answer

Voltage leads current by 45°

Question 4

Three identical 9Ω resistors are connected in delta. What is the equivalent resistance of each arm when converted to a star (Y) configuration?

Accepted Answer

3 Ω

Answer

9 Ω

Answer

27 Ω

Answer

6 Ω

Question 5

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?

Accepted Answer

11 V

Answer

12 V

Answer

10 V

Answer

6 V

Question 6

Which method is most efficient for analyzing a circuit with multiple meshes but only one current source?

Accepted Answer

Nodal analysis

Answer

Mesh analysis

Answer

Superposition

Answer

Delta-star transformation