Information and Communication Technology (ICT) refers to the use of digital technology to manage, transmit, and store information. It encompasses a range of technologies including computers, software, communication, productivity, and innovation.
Chapter 8 physics class 10 Notes
electric field is weak when: lines are far apart
In liquids and gases the current is due to the motion of: Both positive and negative charges
A capacitor stores 0.24 coulombs at 10 volts. It capacitance is: 0.024F
The direction of electric field lines due to positive charge is: A way from the charge
The filament of an electric bulb is made of: Tungsten
study of charges at rest is called: electrostatics
Which of the following is not Processing: gathering
CD which is made of soft material is called: Floppy disk
the phenomena which is used in applying paints on the surface of different articles is called: electrostatic induction
A 3? resistor having 2A current will dissipate the power of: 12W
In series combination of capacitors, each capacitor will have same: Charge
In series combination of capacitors, each capacitor will have same: Charge
Which is not an e.m.f source: Rheostat
The phenomena used in capacitor is: electrostatic induction
In computer terminology information means: processed data
Electric potential and e.m.f.: Are the different terms
Which of the following is an insulator: Silk
1.6×10 19 J= : 1eV
The parts of computer which can be seen and touched are called: Hardware
Short form of information Technology is: IT
A data storage device is: Hard disk
the substance in which electric current flows easily is called: conductor
In fixed capacitor dielectric used is: Paper & mica
Radio waves are: Electromagnetic waves
Which is the most suitable means of reliable continuous communication between an orbiting satellite and Earth: Radio waves
The brain of any computer system is: CUP
Which is the best material for making connecting wires: Copper
Which statement of the following is false for primary memory: It is built on laser technology
The substances which do not have free electrons are called: Insulators
A parallel circuit is also used as a divider for: Current
An example of input device of computer is: Key board
which is a major cause of fires and explosions at many places: static electricity
The presence of fish by the other fish can be detected by: Electric field
Nichrome wire is an alloy of: Nickel and chromium
electroscope can also be charges by the process of: conduction
the insulator between the plates of capacitor is called: dielectric
Power of electric heater is: 1500W
Which waves of the following has highest frequency: Light wave
Which is not a hardware device: Windows
The example of magnetic disk is: Floppy disk
If a dielectric medium is present between two point charges them electrostatic force will be: Decreased
A group of instructions or a program which guides hardware to do work is called: Software
parallel plate consists of 2 metal plates separated by: insulator
The speed of sound in air is kmh 1: 1246
Information storage devices work on the principles of: Magnetism
Which memory consists of integrated circuits: Primary memory
an electrolytic capacitor is used to store large amounts of charge at: low voltage
In computer terminology, proceed data is called: Information
Which process is involved to store charge in capacitors: Electrostatic induction
What happens to the intensity or the brightness of the lamps connected in series as more and more lamps are added: Decreases
1 GB = ________ Megabytes: 1024
Resistance of a wire of conductor of 2 ? resistance is doubled: 4 ?
1 MB = ______ Kilobytes: 1024
Capacitors are mainly used for radio frequency tuning: Air capacitor
Specific resistance of aluminium in (10 8 ?.m) is: 2.75
From which of the following you can get information almost about everything: Internet
which can be used to distinguish between insulators and conductors: electroscope
Which technology is used in mobile phone: Radio
Hard disk is made of: Aluminium
What is the voltage across a 6 ? resistor when 3 A of current passes through it: 18 V
The electric potential energy per unit charge is called: Electric potential
One joule per coulomb is called: Volt
Why household appliances should be connected in parallel with the voltage source: To provide each appliance the same voltage as the power source
The capacitance of a parallel plate capacitor is 100 pF and the potential difference between its plate is 50 volts. What is the quantity of charge on its plates: 5nC
A dielectric must be: Insulator
1 KB = 1024 bytes
A paper capacitor is usually available in the form of: Rolled foil
The data stored in C.D. is: 680 MB
If there is divergence of leaves by touching a body with electroscope then the body is: charge body
F= qE
What does the term e mail stand for: Electronic mail
Electronic message is called: E-mail
A unit of electric charge, equal to the charge of 6.25×1018 electrons is: Coulomb
The device which is used to convert sound waves into electrical signal is called: Microphone
Specific resistance of silver is: 1.7×10-8 ?.m
Instrument used for detecting and testing the nature of charge on a body is called: electroscope
It is used in satellite communication: Micro waves
Thermocouples convert: Heat energy into electrical energy
A device which has two way communication is: Mobile phone.
Which component is output device of computer: Monitor
Important : Review all previous years’ 10 class past papers for comprehensive practice and better exam preparation.