Welcome to the 12th Class Physics Chapter 18 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 12th Class Physics Chapter 18 Electronics.
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What does LED stand for in electronics?
a) Light Emitting Diode
b) Long-lasting Electronic Device
c) Low Energy Display
d) Liquid Electric Device
Which electronic component allows current to flow in only one direction?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
The process of converting an analog signal into a digital format is known as:
a) Amplification
b) Modulation
c) Demodulation
d) Analog-to-Digital Conversion (ADC)
Which electronic component is used to store electrical charge and energy?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What is the basic unit of digital information in electronics?
a) Volt
b) Ampere
c) Bit
d) Watt
What is the name of the electronic component that amplifies or switches electronic signals?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
Which electronic component is commonly used to control the flow of current in a circuit?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What does CPU stand for in electronics and computing?
a) Central Processing Unit
b) Central Power Unit
c) Control Processing Unit
d) Control Power Unit
Which type of circuit is used to store a single binary digit (0 or 1)?
a) Decoder
b) Encoder
c) Flip-flop
d) Multiplexer
Which electronic component is used to amplify electrical signals in an analog circuit?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What is the name of the binary code that represents data in most digital systems?
a) ASCII
b) BCD
c) Unicode
d) Binary
In electronics, what does the term “VLSI” stand for?
a) Very Large-Scale Integration
b) Very Low Signal Interference
c) Voltage Level Signal Indicator
d) Variable Logic System Interface
Which electronic component is commonly used as a voltage regulator in power supply circuits?
a) Transistor
b) Diode
c) Capacitor
d) Voltage Regulator IC
What is the binary equivalent of the decimal number 10?
a) 1010
b) 1100
c) 1000
d) 1110
What is the name of the electronic component that performs arithmetic and logical operations in a computer?
a) Transistor
b) Diode
c) Microprocessor
d) Resistor
Which electronic component is used to connect multiple input signals to a single output?
a) Decoder
b) Encoder
c) Flip-flop
d) Multiplexer
What does ROM stand for in electronics and computing?
a) Random Output Memory
b) Read-Only Memory
c) Randomized Operating Module
d) Read-On Mode
Which electronic component is commonly used to control the flow of current in a circuit based on the input voltage?
a) Transistor
b) Diode
c) Capacitor
d) Operational Amplifier (Op-amp)
What is the name of the electronic component that stores data temporarily in a
computer’s memory?
a) Transistor
b) Diode
c) RAM (Random Access Memory)
d) Resistor
Which electronic component is commonly used to convert digital signals into analog signals?
a) Transistor
b) Diode
c) Capacitor
d) Digital-to-Analog Converter (DAC)
What is the binary equivalent of the decimal number 5?
a) 101
b) 110
c) 111
d) 100
What does RAM stand for in electronics and computing?
a) Random Access Memory
b) Read-Only Memory
c) Random Addressable Memory
d) Read-Access Memory
Which electronic component is used to amplify small electrical signals in radio and communication circuits?
a) Transistor
b) Diode
c) Capacitor
d) Inductor
What is the name of the electronic component that performs the opposite operation of a decoder?
a) Encoder
b) Flip-flop
c) Multiplexer
d) Comparator
What is the binary equivalent of the decimal number 3?
a) 11
b) 101
c) 111
d) 110
In digital electronics, what does the term “CMOS” stand for?
a) Complete Metal-Oxide Semiconductor
b) Complementary Metal-Oxide Semiconductor
c) Controlled Metal-Oxide Semiconductor
d) Conductor Metal-Oxide Semiconductor
Which electronic component is commonly used as a switch in electronic circuits?
a) Transistor
b) Diode
c) Capacitor
d) Relay
What does CPU stand for in electronics and computing?
a) Central Processing Unit
b) Central Power Unit
c) Control Processing Unit
d) Control Power Unit
Which electronic component is used to store electrical charge and energy?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What is the basic unit of digital information in electronics?
a) Volt
b) Ampere
c) Bit
d) Watt
What is the name of the electronic component that amplifies or switches electronic signals?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
Which electronic component is commonly used to control the flow of current in a circuit?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What does CPU stand for in electronics and computing?
a) Central Processing Unit
b) Central Power Unit
c) Control Processing Unit
d) Control Power Unit
Which type of circuit is used to store a single binary digit (0 or 1)?
a) Decoder
b) Encoder
c) Flip-flop
d) Multiplexer
Which electronic component is used to amplify electrical signals in an analog circuit?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What is the name of the binary code that represents data in most digital systems?
a) ASCII
b) BCD
c) Unicode
d) Binary
In electronics, what does the term “VLSI” stand for?
a) Very Large-Scale Integration
b) Very Low Signal Interference
c) Voltage Level Signal Indicator
d) Variable Logic System Interface
Which electronic component is commonly used as a voltage regulator in power supply circuits?
a) Transistor
b) Diode
c) Capacitor
d) Voltage Regulator IC
What is the binary equivalent of the decimal number 10?
a) 1010
b) 1100
c) 1000
d) 1110
What is the name of the electronic component that performs arithmetic and logical operations in a computer?
a) Transistor
b) Diode
c) Microprocessor
d) Resistor
Which electronic component is used to connect multiple input signals to a single output?
a) Decoder
b) Encoder
c) Flip-flop
d) Multiplexer
What does ROM stand for in electronics and computing?
a) Random Output Memory
b) Read-Only Memory
c) Randomized Operating Module
d) Read-On Mode
Which electronic component is commonly used to control the flow of current in a circuit based on the input voltage?
a) Transistor
b) Diode
c) Capacitor
d) Operational Amplifier (Op-amp)
What is the name of the electronic component that stores data temporarily in a
computer’s memory?
a) Transistor
b) Diode
c) RAM (Random Access Memory)
d) Resistor
Which electronic component is commonly used to convert digital signals into analog signals?
a) Transistor
b) Diode
c) Capacitor
d) Digital-to-Analog Converter (DAC)
What is the binary equivalent of the decimal number 5?
a) 101
b) 110
c) 111
d) 100
What does RAM stand for in electronics and computing?
a) Random Access Memory
b) Read-Only Memory
c) Random Addressable Memory
d) Read-Access Memory
Which electronic component is used to amplify small electrical signals in radio and communication circuits?
a) Transistor
b) Diode
c) Capacitor
d) Inductor
What is the name of the electronic component that performs the opposite operation of a decoder?
a) Encoder
b) Flip-flop
c) Multiplexer
d) Comparator
What is the binary equivalent of the decimal number 3?
a) 11
b) 101
c) 111
d) 110
In digital electronics, what does the term “CMOS” stand for?
a) Complete Metal-Oxide Semiconductor
b) Complementary Metal-Oxide Semiconductor
c) Controlled Metal-Oxide Semiconductor
d) Conductor Metal-Oxide Semiconductor
Which electronic component is commonly used as a switch in electronic circuits?
a) Transistor
b) Diode
c) Capacitor
d) Relay
What does CPU stand for in electronics and computing?
a) Central Processing Unit
b) Central Power Unit
c) Control Processing Unit
d) Control Power Unit
Which electronic component is used to store electrical charge and energy?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What is the basic unit of digital information in electronics?
a) Volt
b) Ampere
c) Bit
d) Watt
What is the name of the electronic component that amplifies or switches electronic signals?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
Which electronic component is commonly used to control the flow of current in a circuit?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
What does CPU stand for in electronics and computing?
a) Central Processing Unit
b) Central Power Unit
c) Control Processing Unit
d) Control Power Unit
Which type of circuit is used to store a single binary digit (0 or 1)?
a) Decoder
b) Encoder
c) Flip-flop
d) Multiplexer
Which electronic component is commonly used to amplify electrical signals in an analog circuit?
a) Transistor
b) Diode
c) Capacitor
d) Resistor
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