Electrical Engineering Final Exam Review Questions and Answers Latest 2026 Comprehensive Practice Exam with Correct Answers and Rationales

Electrical Engineering Final Exam Review
Questions and Answers Latest 2026
Comprehensive Practice Exam with
Correct Answers and Rationales
Section 1: Electrical Fundamentals




1. The flow of electric charge through a conductor is
called:

A. Voltage
B. Current
C. Resistance
D. Power

Answer: B. Current

Rationale: Electric current is the movement of electrons
through a conductive path and is measured in amperes.

,2. The SI unit of voltage is:

A. Ampere
B. Ohm
C. Volt
D. Watt

Answer: C. Volt

Rationale: Voltage represents electrical potential
difference and is measured in volts.




3. Resistance opposes:

A. Voltage generation
B. Current flow
C. Magnetic fields
D. Frequency changes

Answer: B. Current flow

Rationale: Resistance limits the movement of electric
charge in a circuit.

,4. The equation for electrical power is:

A. P = VI
B. P = IR
C. P = V/R
D. P = R/I

Answer: A. P = VI

Rationale: Electrical power is calculated by multiplying
voltage by current.




5. Electrical energy is commonly measured in:

A. Kilowatt-hours
B. Ohms
C. Amperes
D. Hertz

Answer: A. Kilowatt-hours

Rationale: Utility companies measure consumed electrical
energy in kilowatt-hours (kWh).

, 6. A material with many free electrons is called a:

A. Semiconductor
B. Conductor
C. Insulator
D. Dielectric

Answer: B. Conductor

Rationale: Conductors allow electric charges to move
easily.




7. Copper is widely used in electrical wiring because it
has:

A. High resistance
B. Low conductivity
C. Excellent conductivity
D. No electrons

Answer: C. Excellent conductivity

Rationale: Copper has low electrical resistance and good
mechanical properties.