Here are 20 basic electronics questions for SS1 First Term, along with options and answers:
Question: What is the SI unit of resistance?
A) Ohm
B) Volt
C) Ampere
D) Watt
Answer: A) Ohm
Question: Which component is used to store electrical charge in a circuit?
A) Resistor
B) Capacitor
C) Inductor
D) Diode
Answer: B) Capacitor
Question: What does LED stand for?
A) Light Emitting Diode
B) Long Electric Device
C) Low Energy Detector
D) Liquid Emission Display
Answer: A) Light Emitting Diode
Question: In a series circuit, the total resistance is equal to:
A) The sum of individual resistances
B) The average of individual resistances
C) The reciprocal of individual resistances
D) The product of individual resistances
Answer: A) The sum of individual resistances
Question: What is the purpose of a diode in an electronic circuit?
A) To amplify signals
B) To regulate voltage
C) To control current flow
D) To store charge
Answer: C) To control current flow
Question: Which material is commonly used as a semiconductor in electronics?
A) Copper
B) Aluminum
C) Silicon
D) Iron
Answer: C) Silicon
Question: What is the function of an inductor in a circuit?
A) Stores electrical charge
B) Controls current flow
C) Induces voltage
D) Regulates resistance
Answer: C) Induces voltage
Question: The basic unit of electrical power is:
A) Watt
B) Volt
C) Ampere
D) Ohm
Answer: A) Watt
Question: Which type of circuit has only one path for current to flow?
A) Parallel circuit
B) Series circuit
C) Combination circuit
D) Open circuit
Answer: B) Series circuit
Question: What is the function of a transistor in electronic devices?
A) To amplify or switch electronic signals
B) To store electrical energy
C) To regulate voltage
D) To resist current flow
Answer: A) To amplify or switch electronic signals
Question: The symbol “AC” in AC voltage stands for:
A) Alternating Current
B) Amplified Current
C) Average Current
D) Applied Current
Answer: A) Alternating Current
Question: Which component is used to protect other components from excessive current?
A) Resistor
B) Capacitor
C) Diode
D) Fuse
Answer: D) Fuse
Question: What is the role of a resistor in an electrical circuit?
A) Stores energy
B) Controls current flow
C) Induces voltage
D) Amplifies signals
Answer: B) Controls current flow
Question: Which law states that the current flowing through a conductor is directly proportional to the voltage across it?
A) Ohm’s Law
B) Kirchhoff’s Law
C) Faraday’s Law
D) Newton’s Law
Answer: A) Ohm’s Law
Question: What is the purpose of a transformer in an electrical circuit?
A) To amplify signals
B) To convert AC to DC
C) To regulate voltage
D) To change voltage levels
Answer: D) To change voltage levels
Question: The unit of capacitance is:
A) Ohm
B) Ampere
C) Farad
D) Volt
Answer: C) Farad
Question: Which device is used to protect electronic circuits from voltage spikes?
A) Capacitor
B) Inductor
C) Diode
D) Surge Protector
Answer: D) Surge Protector
Question: What does IC stand for in electronics?
A) Integrated Circuit
B) Inductive Capacitor
C) Insulated Conductor
D) Indirect Current
Answer: A) Integrated Circuit
Question: The unit of frequency is:
A) Hertz
B) Watt
C) Joule
D) Volt
Answer: A) Hertz
Question: Which law states that the total current entering a junction is equal to the total current leaving the junction?
A) Ohm’s Law
B) Kirchhoff’s Current Law
C) Kirchhoff’s Voltage Law
D) Faraday’s Law
Answer: B) Kirchhoff’s Current Law.
FAQs
What topics are usually covered in SS1 First Term Basic Electronics past questions?
SS1 First Term Basic Electronics past questions typically cover topics such as Ohm’s Law, series and parallel circuits, types of resistors and capacitors, basic electronic symbols, current and voltage calculations, and simple circuit diagrams. Questions may also test understanding of conductors, insulators, and the function of basic components like diodes and switches.
How can I effectively use past questions to prepare for exams?
To use past questions effectively, start by attempting them under timed conditions to simulate an exam environment. Identify the areas where mistakes are frequent and review the corresponding theory. Practicing a variety of questions helps reinforce concepts, improve speed, and build confidence for the actual exam.
Are the answers to SS1 Basic Electronics past questions reliable for studying?
Yes, answers to past questions are generally reliable if they come from verified sources like past WAEC, NECO, or school-provided compilations. However, it’s important to cross-check solutions with textbooks or class notes to ensure understanding, especially for calculation-based questions and circuit diagrams.
Do SS1 past questions repeat in exams, and should I memorize answers?
While some question patterns may repeat, exams usually change the numbers, circuit configurations, or phrasing. Memorizing answers without understanding the underlying principles is not recommended. Focus on understanding concepts, practicing calculations, and learning how to apply formulas to different scenarios.
Also Read: SS2 First Term Auto Mechanic Past Questions and Answers
