BEE Fundamental Circuit Analysis 3

Question 1

In the Norton equivalent circuit, the Norton current (I_N) is determined by:

Accepted Answer

Short-circuiting the load terminals and measuring current

Answer

I_N is the short-circuit current at the terminals of the original network.

Question 2

A capacitor of 100 µF is charged to 12 V. How much energy is stored in it?

Accepted Answer

7.2 mJ

Answer

E = ½CV² = ½ × 100×10⁻⁶ × 144 = 7.2×10⁻³ J = 7.2 mJ.

Question 3

Which of the following correctly describes a node in circuit analysis?

Accepted Answer

A point where two or more circuit elements meet

Answer

A node is a junction point connecting two or more circuit elements, used to apply KCL.

Question 4

For maximum power transfer from a source with internal resistance R_s to a load R_L, the condition is:

Accepted Answer

R_L = R_s

Answer

Maximum power is delivered to the load when R_L equals the Thevenin resistance R_th (source resistance R_s).

Question 5

In mesh analysis, a mesh current is:

Accepted Answer

A hypothetical current circulating in a closed loop

Answer

Mesh currents are fictitious loop currents assigned to each independent mesh to set up KVL equations.

BEE - Bachelor of Electrical Engineering Practice Test