Home
Class 12
PHYSICS
A transistor oscillator is (i) An ampl...

A transistor oscillator is
(i) An amplifier with positive feedback
(ii) An amplifier with reduced gain
(iii) The one in which DC supply energy is converted into AC output energy. Then

A

only (i) and (ii) are correct

B

only (1) and (iii) are correct

C

only (ii) and (iii) are correct

D

all (i), (ii) and (iii) are correct

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTRONIC DEVICES

    MTG GUIDE|Exercise CHECK YOUR BEET VITALS|25 Videos
  • ELECTRONIC DEVICES

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|42 Videos
  • ELECTRONIC DEVICES

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|42 Videos
  • ELECTROMAGNETIC WAVES

    MTG GUIDE|Exercise AIPMT/NEET(MCQs)|15 Videos
  • ELECTROSTATICS

    MTG GUIDE|Exercise AIPMT/NEET (MCQ.s)|34 Videos

Similar Questions

Explore conceptually related problems

The overall gain of a multistage amplifier is 100. When negative feedback is applied,the gain reduces to 10.Find the fraction of the output that is feedback to the input

When base current in a silicon transistor is changed by 12 muA the input resistance of the transistor is 650 omega when this transistor is uded as a CE amplifier with load resistance of 2 k omega calculate (i) the current gain (ii) transconductance (iiii) voltage gain of the amplifer

Assertion : In an oscillator, the feedback is in the same phase which is called as positive feedback. Reason: If the feedback voltage is in opposite phase, the gain is greater than one.

In a negative feedback amplifier, the gain without feedback in 100 , feed back ratio is 1//25 and input voltage is 50 m V . Calculate (i) gain with feedback (ii) feedback factor (iii) output voltage (iv) feedback voltage (v) new input voltage so that output voltage with feedback equals the output voltage without feedback.

Output characteristics of an n-p-n transistor in CE configuration is shown in the Fig. Determine (i) dynamic output resistance (ii) dc current gain and (iii) ac current gain at an opererating point V_(CE)=10V , when I_(B)=30muA .

Draw a circuit diagram of a transistor amplifier in CE configuration. Define the terms (i) Input resistance and (ii) Current amplification factor. How are these determined using input and output characteristics?

A linear harmonic oscillator has a total mechanical energy of 200 J . Potential energy of it at mean position is 50J . Find (i) the maximum kinetic energy, (ii)the minimum potential energy, (iii) the potential energy at extreme positions.

Name the devices or machines which convert : (i) Electrical energy into sound energy. (ii) Heat energy into kinetic energy (or mechanical energy). (iii) Chemical energy into kinetic energy (or mechnical energy). (iv) Chemical energy into heat energy. (v) Light energy into heat energy.

The amplitude of a simiple harmonic oscillator is tripled. How does this affect (i) the maximum velocity (ii) the total energy and (iii) the period of the oscillator?

A transistor is preferable to a triode valve when used in amplifier because it i) Can withstand large changes in tempratures ii) has a higher input impedance iii)can handle larger powers (iv) does not require powers Which of the above statements is correct?

MTG GUIDE-ELECTRONIC DEVICES-NEET CAFÉ (TOPICWISE PRACTICE QUESTIONS)
  1. An n-p-n transistor having a.c. current gain of 50 to be used to make ...

    Text Solution

    |

  2. In a common emitter transistor amplifier, the output resistance is 500...

    Text Solution

    |

  3. A transistor oscillator is (i) An amplifier with positive feedback ...

    Text Solution

    |

  4. For a common emitter amplifier, the audio frequency voltage across the...

    Text Solution

    |

  5. If beta, RL and r are the ac current gain, load resistance and the inp...

    Text Solution

    |

  6. The transfer characteristics of a base biased common in the figure. Wh...

    Text Solution

    |

  7. The transfer characteristics of a base biased transistor has the opera...

    Text Solution

    |

  8. To get an OR gate from a NAND gate we need

    Text Solution

    |

  9. In the following circuit, Y is

    Text Solution

    |

  10. The Booleam expression for the given circuit is

    Text Solution

    |

  11. In Boolean expression, a gate may be expressed as Y=bar(A+B). Which on...

    Text Solution

    |

  12. Which of the following gates (figure) will have an output of 1 ?

    Text Solution

    |

  13. The combination of the gates as shown in figure represent

    Text Solution

    |

  14. The real time variation of input signals A and B are as shown below. I...

    Text Solution

    |

  15. Identify the logic operation performed by the circuit as shown in the ...

    Text Solution

    |

  16. In the circuit below, A and B represent two inputs and C represents th...

    Text Solution

    |

  17. In the Boolean algebra, what is the equivalent expression for barA.bar...

    Text Solution

    |

  18. The inputs and outputs for different time intervals are given below fo...

    Text Solution

    |

  19. The Boolean equation for the circuit given in figure is

    Text Solution

    |

  20. Select the outputs Y of the combination of gates shown below for input...

    Text Solution

    |