WAEC GCE Basic Electricity 2025 Answers – Full Exam Guide

WAEC GCE Basic Electricity 2025 Questions and Answers | Full Exam Breakdown and Study Guide

The WAEC GCE Basic Electricity 2025 exam is designed to evaluate candidates’ understanding of fundamental electrical principles, circuit analysis, and safe electrical practices. This subject is essential for students interested in electrical engineering, electronics, or technical vocations.

The WAEC GCE Basic Electricity 2025 paper is scheduled for Tuesday, 25th November, 2025, and it consists of two papers:

• Basic Electricity 2 (Essay) – 1 hour – from 11:00 hrs to 12:00 hrs.

• Basic Electricity 1 (Objective) – 1 hour – from 12:00 hrs to 13:00 hrs.

In this complete guide, you’ll find verified WAEC GCE Basic Electricity 2025 questions and answers, exam format, important topics, and expert strategies to help you score excellent grades.

Overview of the WAEC GCE Basic Electricity 2025 Exam

The WAEC GCE Basic Electricity 2025 examination tests your knowledge of electric circuits, electrical laws, components, measurements, and safety. It combines theoretical understanding with real-world application.

The exam focuses on these areas:

• Electrical principles and laws (Ohm’s law, Kirchhoff’s laws)

• Electric circuits (series, parallel, and mixed)

• Electrical components and symbols

• Measuring instruments

• Safety precautions and maintenance practices

This subject serves as a foundation for advanced technical fields like electronics, electrical installation, and power systems.

Structure of the WAEC GCE Basic Electricity 2025 Exam

Paper 2 (Essay) – 1 Hour

This section requires written explanations, definitions, and sometimes sketches. Questions test understanding and problem-solving ability.

Paper 1 (Objective) – 1 Hour

This paper consists of multiple-choice questions covering all areas of basic electricity. You’ll need speed, accuracy, and conceptual understanding.

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Likely WAEC GCE Basic Electricity 2025 Questions and Answers

Below are likely WAEC GCE Basic Electricity 2025 Essay and Objective Questions with correct answers and explanations.

Question 1:

State Ohm’s Law and express it mathematically.

Answer:
Ohm’s Law states that the current flowing through a conductor is directly proportional to the voltage across it, provided temperature remains constant.

Mathematically:

$$V=IR$$

Where:
V = Voltage (volts)
I = Current (amperes)
R = Resistance (ohms)

Explanation:
Ohm’s law is fundamental in analyzing and calculating electrical circuit behavior.

Question 2:

List three types of electrical circuits.

Answer:

1. Series Circuit

2. Parallel Circuit

3. Series-Parallel (Mixed) Circuit

Explanation:
These circuits differ in how components share current and voltage. Series circuits have the same current throughout, while parallel circuits share voltage.

Question 3:

Define a resistor and state two types.

Answer:
A resistor is a device that limits or controls current flow in an electric circuit.

Types:

1. Fixed Resistor

2. Variable Resistor (Potentiometer)

Example:
Resistors help regulate voltage in circuits and protect components from damage.

Question 4:

What are conductors and insulators? Give examples.

Answer:

• Conductors: Materials that allow electric current to flow easily.
  Examples: Copper, Silver, Aluminum.

• Insulators: Materials that resist current flow.
  Examples: Rubber, Plastic, Glass.

Explanation:
Conductors are used for wiring, while insulators prevent shocks and short circuits.

Question 5:

List three electrical measuring instruments and their uses.

Answer:

1. Ammeter: Measures electric current in amperes.

2. Voltmeter: Measures potential difference in volts.

3. Ohmmeter: Measures resistance in ohms.

Tip: Always connect voltmeters in parallel and ammeters in series.

Question 6:

Explain the term “electric power” and write its formula.

Answer:
Electric power is the rate at which electrical energy is converted into work.

Formula:

$$P=VI$$

Where:
P = Power (Watts), V = Voltage, I = Current.

Example:
A 230V bulb drawing 0.5A uses 115W of power.

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Key Topics to Study for WAEC GCE Basic Electricity 2025

1. Atomic Structure and Conductivity

   • Movement of electrons

   • Conduction in metals

2. Electrical Quantities and Units

   • Voltage, Current, Resistance, Power, Energy

   • SI units and conversions

3. Ohm’s and Kirchhoff’s Laws

   • Calculations for series and parallel circuits

4. Electrical Components and Symbols

   • Resistors, capacitors, diodes, transistors

5. Network Theorems

   • Thevenin’s and Norton’s theorems

   • Superposition and maximum power transfer

6. Measuring Instruments

   • Principles and usage of multimeter, galvanometer, and wattmeter

7. Electromagnetism and Induction

   • Magnetic field, Fleming’s laws, transformers

8. Safety Practices

   • Fuse, circuit breakers, earthing, and insulation

Sample Calculations for WAEC GCE Basic Electricity 2025

Question 7:

A 12V battery supplies a current of 3A to a resistor. Calculate the resistance.

R=VI=123=4 ohmsR = \frac{V}{I} = \frac{12}{3} = 4 \text{ ohms}R=IV​=312​=4 ohms

Answer: Resistance = 4Ω

Question 8:

A lamp consumes 60W of power when connected to a 240V source. Find the current drawn.

I=PV=60240=0.25AI = \frac{P}{V} = \frac{60}{240} = 0.25AI=VP​=24060​=0.25A

Answer: Current = 0.25A

Question 9:

If a circuit has a total resistance of 10Ω and current of 2A, find the voltage.

$$V=IR=2\times 10=20V$$

Answer: Voltage = 20V

WAEC GCE Basic Electricity 2025 Marking Guide

To achieve a distinction, aim for at least 80% accuracy in both papers.

WAEC GCE Basic Electricity 2025 Study Tips

1. Study Past Questions:
   Review at least the past five years of WAEC GCE Basic Electricity papers.

2. Memorize Formulas:
   Key formulas like Ohm’s Law, Power, and Energy equations appear frequently.

3. Understand Symbols:
   Learn standard circuit symbols used in diagrams.

4. Practice Numerical Problems:
   The exam includes direct and indirect calculations.

5. Revise Safety Precautions:
   Know fuse ratings, grounding, and emergency procedures.

6. Time Management:
   Essay paper requires concise and accurate answers within one hour.

7. Stay Practical:
   Try simple wiring or circuit experiments to visualize theoretical concepts.

WAEC GCE Basic Electricity 2025 Exam Timetable Recap

Common Mistakes to Avoid in WAEC GCE Basic Electricity 2025

1. Neglecting Unit Conversions: Always convert milliampere to ampere and kilovolt to volt.

2. Forgetting Formula Derivations: Understanding how formulas are derived helps memory retention.

3. Poor Diagram Labeling: Draw and label symbols accurately.

4. Overlooking Power Factor Questions: Learn the relationship between real, apparent, and reactive power.

5. Not Reviewing Laws Thoroughly: Questions on Ohm’s and Kirchhoff’s laws are recurring.

Sample Objective Questions (Practice)

1️⃣ The unit of electrical energy is:
A. Watt
B. Joule ✅
C. Coulomb
D. Volt

2️⃣ Which material is a good conductor of electricity?
A. Wood
B. Copper ✅
C. Rubber
D. Plastic

3️⃣ The instrument used to measure electric current is:
A. Voltmeter
B. Ammeter ✅
C. Ohmmeter
D. Galvanometer

4️⃣ Which device protects an electric circuit from overload?
A. Transformer
B. Battery
C. Fuse ✅
D. Resistor

Career Opportunities After Passing WAEC GCE Basic Electricity 2025

Excelling in WAEC GCE Basic Electricity 2025 can open up multiple career paths such as:

• Electrical Engineer

• Power Technician

• Electronics Repair Expert

• Renewable Energy Specialist

• Industrial Maintenance Officer

• Electrical Installation Supervisor

This subject lays a solid foundation for higher studies in engineering and technical training institutions.

Conclusion

The WAEC GCE Basic Electricity 2025 exam is more than just a test of theory—it evaluates your understanding of practical concepts, safety, and problem-solving skills. To excel, focus on consistent study, practice circuit calculations, and master your formulas.

Remember, accuracy, time management, and deep understanding are your keys to success in WAEC GCE Basic Electricity 2025.