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ELE 146 EXAM / ACTUAL ELE 146
INTRODUCTION TO ELECTRICAL
ENGINEERING (DC/AC CIRCUITS , DIGITAL
LOGIC,POWER & SAFETY) FINAL EXAM
2026/2027 AND STUDY GUIDE ACCURATE
APPROVED QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
(100 % CORRECT VERIFIED SO
Q1. A resistor has a voltage drop of 12 V and a current of 3
A. What is its resistance?
A) 4 Ω
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B) 36 Ω
C) 0.25 Ω
D) 15 Ω
Answer: A) 4 Ω
Rationale: R=V/I=12/3=4 ΩR=V/I=12/3=4Ω. Ohm’s law
states V=IRV=IR.
Q2. If 5 coulombs of charge pass a point in 2 seconds, what is
the current?
A) 10 A
B) 2.5 A
C) 0.4 A
D) 7 A
Answer: B) 2.5 A
Rationale: I=Q/t=5/2=2.5 AI=Q/t=5/2=2.5A. Current is
charge flow rate.
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Q3. A 100 Ω resistor carries 0.5 A. The power dissipated is:
A) 50 W
B) 200 W
C) 25 W
D) 5 W
Answer: C) 25 W
Rationale: P=I2R=(0.5)2×100=0.25×100=25 WP=I2R=(0.5
)2×100=0.25×100=25W.
Q4. Which of the following is NOT a unit of power?
A) Joule/second
B) Watt
C) Volt-ampere
D) Volt/coulomb
Answer: D) Volt/coulomb
Rationale: Volt/coulomb = joule/coulomb², not power. Power
= energy/time.
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Q5. Three resistors 10 Ω, 20 Ω, and 30 Ω are in series. Total
resistance is:
A) 60 Ω
B) 5.45 Ω
C) 6000 Ω
D) 15 Ω
Answer: A) 60 Ω
Rationale: Rtotal=10+20+30=60 ΩRtotal
=10+20+30=60Ω in series.
Q6. The same three resistors (10 Ω, 20 Ω, 30 Ω) are in
parallel. Total resistance is closest to:
A) 60 Ω
B) 5.45 Ω
C) 0.18 Ω
D) 10 Ω
ELE 146 EXAM / ACTUAL ELE 146
INTRODUCTION TO ELECTRICAL
ENGINEERING (DC/AC CIRCUITS , DIGITAL
LOGIC,POWER & SAFETY) FINAL EXAM
2026/2027 AND STUDY GUIDE ACCURATE
APPROVED QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
(100 % CORRECT VERIFIED SO
Q1. A resistor has a voltage drop of 12 V and a current of 3
A. What is its resistance?
A) 4 Ω
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B) 36 Ω
C) 0.25 Ω
D) 15 Ω
Answer: A) 4 Ω
Rationale: R=V/I=12/3=4 ΩR=V/I=12/3=4Ω. Ohm’s law
states V=IRV=IR.
Q2. If 5 coulombs of charge pass a point in 2 seconds, what is
the current?
A) 10 A
B) 2.5 A
C) 0.4 A
D) 7 A
Answer: B) 2.5 A
Rationale: I=Q/t=5/2=2.5 AI=Q/t=5/2=2.5A. Current is
charge flow rate.
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Q3. A 100 Ω resistor carries 0.5 A. The power dissipated is:
A) 50 W
B) 200 W
C) 25 W
D) 5 W
Answer: C) 25 W
Rationale: P=I2R=(0.5)2×100=0.25×100=25 WP=I2R=(0.5
)2×100=0.25×100=25W.
Q4. Which of the following is NOT a unit of power?
A) Joule/second
B) Watt
C) Volt-ampere
D) Volt/coulomb
Answer: D) Volt/coulomb
Rationale: Volt/coulomb = joule/coulomb², not power. Power
= energy/time.
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Q5. Three resistors 10 Ω, 20 Ω, and 30 Ω are in series. Total
resistance is:
A) 60 Ω
B) 5.45 Ω
C) 6000 Ω
D) 15 Ω
Answer: A) 60 Ω
Rationale: Rtotal=10+20+30=60 ΩRtotal
=10+20+30=60Ω in series.
Q6. The same three resistors (10 Ω, 20 Ω, 30 Ω) are in
parallel. Total resistance is closest to:
A) 60 Ω
B) 5.45 Ω
C) 0.18 Ω
D) 10 Ω
