Question:
An oscillator is nothing but an amplifer with
An oscillator is nothing but an amplifer with
Updated On: Jun 17, 2022
- positive feedback
- negative feedback
- large gain
- no feedback
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
The oscillator and the amplifier works in the same way but the amplifier requires input where the oscillator does not require any input. When the amplifier connects with positive feedback, it acts as the oscillator. The feedback employed here is positive feedback, this means some amount of the output voltage is given to the input. Hence the circuit continues its process without any input to the oscillator. The positive feedback is also known as regenerative feedback because the system sustains or regenerates itself without any input source. Hence the oscillator is nothing but an amplifier with the positive feedback.
Was this answer helpful?
0
0
Top Questions on Semiconductor electronics: materials, devices and simple circuits
The I-V characteristics shown above are exhibited by a:- NEET (UG) - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- Conductivity of a photodiode starts changing only if the wavelength of incident light is less than 660 nm. The band gap of the photodiode is found to be \[\frac{X}{8} \, \text{eV}.\]The value of $X$ is:\text{(Given, $h = 6.6 \times 10^{-34} \, \text{Js}$, $e = 1.6 \times 10^{-19} \, \text{C}$)}
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- To measure the temperature coefficient of resistivity $\alpha$ of a semiconductor, an electrical arrangement shown in the figure is prepared. The arm BC is made up of the semiconductor. The experiment is being conducted at $25^\circ \text{C}$ and the resistance of the semiconductor arm is $3 \, \text{m}\Omega$. Arm BC is cooled at a constant rate of $2^\circ \text{C/s}$. If the galvanometer G shows no deflection after 10 s, then $\alpha$ is:
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- The acceptor level of a p-type semiconductor is 6eV. The maximum wavelength of light which can create a hole would be : Given hc = 1242 eV nm.
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- Which of the diode circuit shows correct biasing used for the measurement of dynamic resistance of p-n junction diode :
- JEE Main - 2024
- Physics
- Semiconductor electronics: materials, devices and simple circuits
View More Questions
Questions Asked in BITSAT exam
- Minimum value of 5cos(2x) + 5sin(2x)
- BITSAT - 2023
- Trigonometric Functions
- Two capacitors, of capacitance C, are connected in series. If one of them is filled with a dielectric substance K, what is the effective capacitance?
- BITSAT - 2023
- electrostatic potential and capacitance
- What is the dimension of the Gravitational constant?
- BITSAT - 2023
- Gravitation
NaOH is deliquescent
- BITSAT - 2023
- States of matter
- The freezing point of the 0.05 molal solution of non - electrolyte in water is? (kf = 1.86)
- BITSAT - 2023
- Solutions
View More Questions
Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.