Home
Class 12
PHYSICS
Statement-I : To be used as amplifier, t...

Statement-I : To be used as amplifier, the transistor in the common emitter configuration is preferred over the common base configuration.
Statement-II : In the common emitter, the signal is applied between emitter and base.

A

If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.

B

If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion `&` Reason are False.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    ALLEN |Exercise Part-1 Physics|15 Videos

  • TEST PAPERS

    ALLEN |Exercise part-2 physics|73 Videos

  • TEST PAPERS

    ALLEN |Exercise PAPER 2|60 Videos

  • TEST PAPER 4

    ALLEN |Exercise PHYSICS|45 Videos

  • UNIT & DIMENSIONS, BASIC MATHS AND VECTOR

    ALLEN |Exercise Exercise (J-A)|7 Videos

Similar Questions

Explore conceptually related problems

Transistor with beta = 75 is connected to common-base configuration. What will be the maxima collector current for an emitter current of 5 mA ?

For a transistor (I_(C))/(I_(E))=0.96 , then current gain for common emitter configuration

For common emitter configuration, if alpha and beta have their usual meanings, the incorrect relationship between alpha and beta is :

Consider an n-p-n transistor amplifer in common-emitter configuration. The current gain of the transistor is 100 . If the collector current changes by 1mA , what will be the change in emitter current?

Statement-I : Germanium is preferred over silicon for making semiconductor devices Statement-II : Energy gap for Ge is more than that of SI

For a transistor ampliflier in common emiter configuration for load imperdance of 1 k Omega (h_(fe) = 50 and h_(oe) = 25) the current gain is

A transistor is used in common emitter mode as an amplifier. Then (A) the base-emitter junction is forward biased (B) the base emitter junction is reverse biased (C) the input signal is connected in series with the voltage applied to the base-emitter junction. (D) the input signal is connected in series with the voltage applied to the base collector junction.

For a common emitter amplifier, current gain = 50. If the emitter current is 6.6 mA, calculate the collector and base current. Also current gain. When emitter is working as common base amplifier,

In the following common emitter configuration an NPN transistor with current gain beta=100 is used. The output voltage of the amlifier will be

For a common base configuration of PNP transistor (l_(C))/(l_(E))=0.98 , then maximum current gain in common emitter configuration will be

ALLEN -TEST PAPERS-PAPER 3
  1. Assertion:- Any arbitrary displacement of charges inside a shell does ...

    Text Solution

    |

  2. Assertion:- Kirchhoff's voltage law indicates that field is conservati...

    Text Solution

    |

  3. Assertion:- Magnetism and superconductivity are natural enemies. Rea...

    Text Solution

    |

  4. Asseration: A metal piece and a non-metal (stone) piece are dropped fr...

    Text Solution

    |

  5. Assertion:- If earth did not have atomosphere, its average surface tem...

    Text Solution

    |

  6. Assertion:- Different colours of light have same velocity in vaccum, b...

    Text Solution

    |

  7. Assertion:- If an object placed on the optic axis of a lens is illumin...

    Text Solution

    |

  8. Assertion:- A simple microscope may have different magnification for d...

    Text Solution

    |

  9. Assertion : Newton's rings are formed in the reflected system. When th...

    Text Solution

    |

  10. Assertion:- A photocell is called an electric eye. Reason:- The elec...

    Text Solution

    |

  11. Assertion : Soft and hard X-rays differ in frequency as well as veloci...

    Text Solution

    |

  12. Assertion:In beta-decay, all the emitted electron do not have the same...

    Text Solution

    |

  13. Statement-I : To be used as amplifier, the transistor in the common em...

    Text Solution

    |

  14. Assertion:- Optical communication system is more economical than other...

    Text Solution

    |

  15. Assertion:- Two identical trains move in opposte sense in equatorial p...

    Text Solution

    |

  16. Statement-1: The size of a hydrogen increases as it rises in air. St...

    Text Solution

    |

  17. Assertion:- For Reynolds number R(e)gt2000m, the flow of fluid is turb...

    Text Solution

    |

  18. Assertion:- To drink chilled juicc, we use icc cubes of 0^(@)C. Reas...

    Text Solution

    |

  19. Assertion:- During adiabatic expansion of an ideal gas, temperature fa...

    Text Solution

    |

  20. Assertion:- Transvers waves are produced in a very long string fixed a...

    Text Solution

    |