20 Basic electronics questions for SS1 Second Term, along with options and answers:
Question: What is the primary function of a zener diode?
A) To amplify signals
B) To regulate voltage
C) To control current flow
D) To store charge
Answer: B) To regulate voltage
Question: The unit of electromotive force (EMF) is:
A) Volt
B) Ampere
C) Ohm
D) Joule
Answer: A) Volt
Question: Which electronic component stores binary data in computers?
A) Transistor
B) Resistor
C) Capacitor
D) Memory (RAM)
Answer: D) Memory (RAM)
Question: What does PWM stand for in electronics?
A) Pulse Width Modulation
B) Power Watt Management
C) Parallel Wave Multiplexing
D) Phase Width Modulation
Answer: A) Pulse Width Modulation
Question: In a parallel circuit, the voltage across each component is:
A) The sum of individual voltages
B) The average of individual voltages
C) Equal to the total voltage
D) Dependent on resistance
Answer: C) Equal to the total voltage
Question: What is the purpose of a rectifier in electronics?
A) To regulate voltage
B) To convert AC to DC
C) To control current flow
D) To store charge
Answer: B) To convert AC to DC
Question: Which type of semiconductor material has excess electrons?
A) P-type
B) N-type
C) Insulator
D) Conductor
Answer: B) N-type
Question: What is the function of a potentiometer in a circuit?
A) To amplify signals
B) To measure resistance
C) To vary voltage
D) To store energy
Answer: C) To vary voltage
Question: Which law states that the total voltage in a closed loop is equal to the sum of the individual voltage drops?
A) Ohm’s Law
B) Kirchhoff’s Current Law
C) Kirchhoff’s Voltage Law
D) Faraday’s Law
Answer: C) Kirchhoff’s Voltage Law
Question: The basic building block of digital circuits is:
A) Capacitor
B) Resistor
C) Transistor
D) Inductor
Answer: C) Transistor
Question: What is the unit of magnetic flux?
A) Weber
B) Gauss
C) Tesla
D) Henry
Answer: A) Weber
Question: Which device is used to change the voltage of an alternating current?
A) Diode
B) Transformer
C) Resistor
D) Capacitor
Answer: B) Transformer
Question: The process of converting digital signals to analog signals is called:
A) Modulation
B) Demodulation
C) Amplification
D) Oscillation
Answer: A) Modulation
Question: What is the purpose of an oscillator in electronics?
A) To regulate voltage
B) To generate a periodic waveform
C) To control current flow
D) To store charge
Answer: B) To generate a periodic waveform
Question: Which component is used to amplify weak electronic signals?
A) Capacitor
B) Inductor
C) Resistor
D) Amplifier
Answer: D) Amplifier
Question: The unit of inductance is:
A) Henry
B) Farad
C) Ohm
D) Volt
Answer: A) Henry
Question: What is the purpose of a relay in a circuit?
A) To regulate voltage
B) To amplify signals
C) To switch high-power circuits using low-power signals
D) To store charge
Answer: C) To switch high-power circuits using low-power signals
Question: Which type of circuit allows current to flow in multiple paths?
A) Series circuit
B) Parallel circuit
C) Combination circuit
D) Open circuit
Answer: B) Parallel circuit
Question: The unit of electric charge is:
A) Volt
B) Ampere-hour
C) Ohm
D) Watt
Answer: B) Ampere-hour
Question: What is the role of a multimeter in electronics?
A) To measure resistance
B) To measure voltage, current, and resistance
C) To amplify signals
D) To regulate voltage
Answer: B) To measure voltage, current, and resistance.
FAQs
What topics are usually covered in SS1 Second Term Basic Electronics past questions?
The SS1 Second Term Basic Electronics past questions typically cover fundamental concepts such as Ohm’s Law, series and parallel circuits, basic electronic components like resistors, capacitors, diodes, and transistors, as well as simple circuit diagrams and calculations. Students are often tested on both theoretical understanding and practical problem-solving skills.
How can I effectively prepare for these past questions?
To prepare effectively, students should review class notes, textbooks, and practical exercises. Solving previous years’ questions repeatedly helps identify common question patterns and strengthens problem-solving speed. Additionally, practicing drawing and analyzing circuit diagrams is crucial for visual comprehension.
Are answers to SS1 Second Term Basic Electronics past questions provided?
Yes, many past question compilations include answers. These answers help students cross-check their solutions and understand the steps required to solve problems correctly. However, it’s important to attempt solving the questions independently first to build comprehension and not rely solely on provided answers.
How often do the questions repeat or vary in exams?
While some concepts, like Ohm’s Law or simple series and parallel circuits, frequently appear, the exact numerical values and circuit arrangements usually vary from year to year. Practicing a wide range of past questions ensures students can adapt to new variations while still applying the underlying principles.
Also Read: SS3 Second Term Basic Electronics Past Questions and Answers
