Fundamentals of Engineering Electrical Circuits and Systems 3

Question 1

What is the unit of electrical capacitance in the SI system?

Accepted Answer

Farad (F)

Answer

Henry (H)

Answer

Ohm (Ω)

Answer

Siemens (S)

Question 2

In digital logic, what is the output of a NAND gate when both inputs are HIGH (1)?

Accepted Answer

0 (LOW)

Answer

1 (HIGH)

Answer

Undefined

Answer

Depends on power supply

Question 3

What is the maximum power transfer theorem?

Accepted Answer

Maximum power is delivered to the load when the load resistance equals the source (Thevenin) resistance

Answer

Power is maximized when load resistance is infinite

Answer

Maximum power occurs when load resistance is zero

Answer

Power transfer is always maximum regardless of load

Question 4

What is the voltage divider formula for the voltage across R₂ in a series circuit of R₁ and R₂?

Accepted Answer

V₂ = V_s × R₂/(R₁ + R₂)

Answer

V₂ = V_s × R₁/(R₁ + R₂)

Answer

V₂ = V_s × (R₁ + R₂)/R₂

Answer

V₂ = V_s / R₂

Question 5

In Boolean algebra, which law states that A + A·B = A?

Accepted Answer

Absorption law

Answer

De Morgan's law

Answer

Distributive law

Answer

Complement law

Question 6

What is the cutoff frequency of a first-order RC low-pass filter with R = 1 kΩ and C = 1 μF?

Accepted Answer

~159 Hz

Answer

~1,000 Hz

Answer

~1,592 Hz

Answer

~100 Hz