BEE Circuit Analysis 2

Question 1

Kirchhoff's Current Law (KCL) states that:

Accepted Answer

Current entering a node equals current leaving

Answer

KCL: The algebraic sum of currents at any node is zero (current in = current out).

Question 2

Two 10Ω resistors connected in parallel have a combined resistance of:

Accepted Answer

5Ω

Answer

Parallel: 1/R_total = 1/10 + 1/10 = 2/10, so R_total = 5Ω.

Question 3

The time constant (τ) of an RC circuit is:

Accepted Answer

R × C

Answer

τ = RC (resistance × capacitance) in seconds.

Question 4

In a series RLC circuit at resonance:

Accepted Answer

Impedance is minimum (equals R only)

Answer

At resonance, inductive and capacitive reactances cancel, leaving only R.

Question 5

Thevenin's theorem allows a complex circuit to be represented as:

Accepted Answer

A voltage source in series with resistance

Answer

Thevenin equivalent: open-circuit voltage source (Vth) in series with Thevenin resistance (Rth).

BEE - Bachelor of Electrical Engineering Practice Test