Engineering Circuit Analysis Practice Exam
Questions and Answers 2026
100 Practice Questions with Correct Answers and
Rationales
1. What is the primary purpose of circuit analysis?
A. To calculate material costs
B. To determine voltages, currents, and power in circuits
C. To design mechanical structures
D. To measure physical dimensions
Answer: B. To determine voltages, currents, and power in
circuits
Rationale: Circuit analysis focuses on understanding
electrical behavior by determining unknown voltages,
currents, resistance, and power.
2. The SI unit of electric charge is:
,A. Ampere
B. Coulomb
C. Volt
D. Ohm
Answer: B. Coulomb
Rationale: Electric charge is measured in coulombs (C).
3. Electric current is defined as:
A. Energy per unit time
B. Rate of flow of electric charge
C. Opposition to current flow
D. Electrical pressure
Answer: B. Rate of flow of electric charge
Rationale: Current represents the movement of charge
through a conductor over time.
4. The SI unit of current is:
,A. Watt
B. Volt
C. Ampere
D. Joule
Answer: C. Ampere
Rationale: Current is measured in amperes (A).
5. Voltage is also known as:
A. Electrical resistance
B. Electrical potential difference
C. Charge flow
D. Power factor
Answer: B. Electrical potential difference
Rationale: Voltage represents the energy difference per
unit charge between two points.
6. Resistance opposes:
, A. Voltage
B. Current flow
C. Power
D. Energy
Answer: B. Current flow
Rationale: Resistance limits the movement of electric
charges.
7. Ohm’s Law is expressed as:
A. P = VI
B. V = IR
C. Q = CV
D. E = Pt
Answer: B. V = IR
Rationale: Ohm’s Law relates voltage, current, and
resistance.
Questions and Answers 2026
100 Practice Questions with Correct Answers and
Rationales
1. What is the primary purpose of circuit analysis?
A. To calculate material costs
B. To determine voltages, currents, and power in circuits
C. To design mechanical structures
D. To measure physical dimensions
Answer: B. To determine voltages, currents, and power in
circuits
Rationale: Circuit analysis focuses on understanding
electrical behavior by determining unknown voltages,
currents, resistance, and power.
2. The SI unit of electric charge is:
,A. Ampere
B. Coulomb
C. Volt
D. Ohm
Answer: B. Coulomb
Rationale: Electric charge is measured in coulombs (C).
3. Electric current is defined as:
A. Energy per unit time
B. Rate of flow of electric charge
C. Opposition to current flow
D. Electrical pressure
Answer: B. Rate of flow of electric charge
Rationale: Current represents the movement of charge
through a conductor over time.
4. The SI unit of current is:
,A. Watt
B. Volt
C. Ampere
D. Joule
Answer: C. Ampere
Rationale: Current is measured in amperes (A).
5. Voltage is also known as:
A. Electrical resistance
B. Electrical potential difference
C. Charge flow
D. Power factor
Answer: B. Electrical potential difference
Rationale: Voltage represents the energy difference per
unit charge between two points.
6. Resistance opposes:
, A. Voltage
B. Current flow
C. Power
D. Energy
Answer: B. Current flow
Rationale: Resistance limits the movement of electric
charges.
7. Ohm’s Law is expressed as:
A. P = VI
B. V = IR
C. Q = CV
D. E = Pt
Answer: B. V = IR
Rationale: Ohm’s Law relates voltage, current, and
resistance.
