Basic Electronics covers fundamental concepts of electrical circuits, components, and systems. It includes topics like resistors, capacitors, transistors, and Ohm’s Law for understanding how electronic devices and systems function.
Physics class 10 chapter 7 Notes
Positive charge in an electric field always tend to move: From higher to lower potential
When a positive charge of 2 coulombs is placed at a point in an electric field, it experiences a force of 6N. The intensity of electric field at this point is: 3 NC-1
The particles emitted from a hot cathode surface are: Electron
The value of K in SI unit is: 9X109Nm2C2
If A input is 1 and B is zero, then in AND operation output will be: 0
Each volt of lightening contains energy: 1000 million joules
Electric field lines were introduced by: Faraday
The process by which electrons are emitted by a hot metal surface is known as: Thermionic emission
In variable capacitor, dielectric medium is: Air
The open switch Boolean expression is represented by: 0
If Current flowing through switch then the output is expressed as: 1
If a neutral body is brought near to the electroscope its leaves: Remain in normal position
Public address system is the example of: Analogue electronics
If the potential energy of none coulomb charge is one joule then its potential will be: 1 volt
If the distance between two point charges is reduced to half, the coulomb’s force become: Fourth times
Electronics is a branch of: Applied Physics
The output of OR gate would be ‘0’ When: Both of its inputs are zero
One coulomb is equal to charge of electrons: 6.25×1018
Simplest electrical circuits use: Two wires
The two inputs of a NAND gate are A and B. Its output would be zero when: A = 1 , B = 1
What will be the capacitance of capacitor by joining them in parallel: Increased
Electronics is the study of principles by means of which we control the: Flow of electrons.
Capacitors that are used in resonant circuits that tune radios to particular frequencies, such circuits are called: Filter circuits
The particles emitted from a hot cathode surface are: Electrons
The closed switch in Boolean expression is represented by: 1
If the distance between the charged bodies is much greater as compared to their sizes then the bodies are considered is: Point charge
Which device is used to show the change in the value of current or electrical potential as a graph: Oscilloscope
The emission of electron from the surface of hot metal is called: Thermionic emission
In electrostatic all charges are in: Static state
The amount of current that causes the loss of muscle control is: 0.015A
electric intensity is a quantity: vector
The output of a NAND gate is 0 when: Both of its inputs are 1
A and B are the two inputs of a NOR gate. Its output would be 1 when: A = 0 , B = 0
The digits used in electronics are: 0 and 1
Boolean expression for AND operation is: X = A . B
Which type of capacitor is cylindrical in shape: Paper capacitor
Give the number of factors which affect the ability of a capacitor to store charge: 3
The symbol of AND operation is: .
Big unit of capacitance is: Farad
The converter of analogue to digital signal is: ADC
If X = A,B, then X is 1 when: A and B are 1
The amount of current that can be painful is: 0.005A
Positive charge can be produced by: Rubbing glass rod on silk
SI unit of electric potential is: volt
Electroscope is used for detecting: Charge
Those quantities whose values change gradually or stay constant are called: Analog quantities
What does a switch do: Open and close the circuit
Digital technology is used in: Radar
Those quantities whose values do not remain constant are called: Digital quantites
The logical operation performed by this gate is: NAND
The device which converts digital quantities into analog quantities is called: DAC
If we double the distance between two charges, then force becomes: ¼ th
SI unit of electric intensity is: NC-1
The base of computer operation are: 0, 1
The amount of current that can be felt is: 0.001 A
Earth wire is connected to the: Ground
The unit of electrical energy is: Electron volt(eV)
The output of a two input NOR gate is 1 when: Both A and B are 0
Static electricity can be generated by: Friction
For the emission of electrons from the tungsten filament the values of current and voltage are taken as: 0.3A and 6V
Two switches attached in series work on which operation: AND operation
If one of the resistors in a parallel circuit is removed, the total resistance will be: Increased
The converter of digital to analogue signal is: DAC
Capacitors are used to store: Charge
1 Pico farad is equal to: 10-12F
To protect the gold leaves of electroscope from the external electric disturbances, the aluminum foil is grounded by a thin wire, which is made up of: Copper
SI unit of capacitance is: Farad
Power of hair dryer is: 1000 W
The process by which electrons are emitted by a hot metal surface is known as: Thermionic emission
AND gate can be formed by using two: NOR gates
The electrostatic force acting on two charges each of 1C separated by 1m is about: 9X109 N
The output of an AND gate is only 1, when: Both of its inputs are 1
1 Nano farad is equal to: 1X10-9F
Which instrument is used to measure current, resistance and potential difference: Digital meter
In 1950, physicists observed that in cathode ray tube a special type of rays produced from cathode, these rays were called: Cathode rays
1 volt is equal to: JC-1
If the field is stronger than lines of force are to each other: Closer
The product of charge ‘q’ and potential difference is equal to: Energy
The quantities, whose values remain constant or vary continuously are called: Analogue quantities
Important : Review all previous years’ 10 class past papers for comprehensive practice and better exam preparation.