SS3 Second Term Basic Electronics Past Questions And Answers
Basic electronics questions for SS3 Second Term with options and answers:
Question: What is the primary function of a capacitor in an electronic circuit?
A) Voltage regulation
B) Signal amplification
C) Energy storage
D) Current control
Answer: C) Energy storage
Question: The process of converting an AC signal to DC is known as:
A) Rectification
B) Amplification
C) Oscillation
D) Induction
Answer: A) Rectification
Question: Which electronic component allows current to flow in only one direction?
A) Resistor
B) Capacitor
C) Inductor
D) Diode
Answer: D) Diode
Question: In a parallel circuit, the voltage across each component is:
A) Equal
B) Proportional to its resistance
C) Inversely proportional to its resistance
D) Zero
Answer: A) Equal
Question: What is the function of an inductor in an electronic circuit?
A) Energy storage
B) Voltage regulation
C) Current amplification
D) Magnetic field generation
Answer: D) Magnetic field generation
Question: The process of increasing the strength of a signal is called:
A) Rectification
B) Amplification
C) Oscillation
D) Modulation
Answer: B) Amplification
Question: What is the unit of capacitance?
A) Henry
B) Farad
C) Ohm
D) Volt
Answer: B) Farad
Question: Which component is used to protect sensitive electronic circuits from voltage spikes?
A) Fuse
B) Inductor
C) Varistor
D) Resistor
Answer: C) Varistor
Question: The circuit which allows current to flow in multiple paths is known as:
A) Series circuit
B) Parallel circuit
C) Complex circuit
D) Open circuit
Answer: B) Parallel circuit
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: Which type of semiconductor material has excess electrons?
A) N-type
B) P-type
C) E-type
D) S-type
Answer: A) N-type
Question: The device that converts electrical energy into mechanical motion is called a:
A) Resistor
B) Capacitor
C) Transistor
D) Motor
Answer: D) Motor
Question: What is the purpose of a potentiometer in an electronic circuit?
A) Control current flow
B) Measure resistance
C) Adjust voltage
D) Store energy
Answer: C) Adjust voltage
Question: Which of the following is a passive electronic component?
A) Transistor
B) Op-amp
C) Diode
D) Resistor
Answer: D) Resistor
Question: What is the function of a relay in an electrical circuit?
A) Voltage regulation
B) Signal amplification
C) Switching high currents with a low current
D) Inductance control
Answer: C) Switching high currents with a low current
Question: The term ‘Ohm’s Law’ relates which three electrical quantities?
A) Voltage, Resistance, and Power
B) Voltage, Current, and Resistance
C) Current, Resistance, and Capacitance
D) Power, Current, and Voltage
Answer: B) Voltage, Current, and Resistance
Question: Which electronic component is commonly used as a signal amplifier in audio systems?
A) Resistor
B) Capacitor
C) Transistor
D) Inductor
Answer: C) Transistor
Question: What is the purpose of a zener diode in a circuit?
A) Rectification
B) Voltage regulation
C) Signal amplification
D) Current control
Answer: B) Voltage regulation
Question: A circuit that contains both series and parallel elements is called:
A) Complex circuit
B) Compound circuit
C) Hybrid circuit
D) Integrated circuit
Answer: C) Hybrid circuit
Question: Which electronic component is used to store data in digital devices?
A) Capacitor
B) Resistor
C) Transistor
D) Memory chip
Answer: D) Memory chip.
