Home
Class 12
PHYSICS
In a common emitter (CE) amplifier havin...

In a common emitter (CE) amplifier having a voltage gain G, the transistor used has transconductor 0.03 mho and current gain 25. If the above transistor is replaced with another one with transconductance 0.02 mho and current gain 20, the voltage gain will

A

`1.5 G`

B

`1/3 G`

C

`5/4G`

D

`2/3 G`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

    AAKASH INSTITUTE|Exercise Assignment SECTION - D (Assertion & reason type Question)|10 Videos
  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

    AAKASH INSTITUTE|Exercise Assignment section -B (Objective Type Question)|24 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - D)|16 Videos
  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE|Exercise Assignment (Section-D (Assertion and reason))|5 Videos

Similar Questions

Explore conceptually related problems

For transistor amplifier, the voltage gain

For a transistor amplifier, the voltage gain

What is the current gain for a transistor used as a common emitter amplifier, if the current gain of the same transistor used in common base mode is 0.95 ?

A common emiiter amplifier has voltage gain 50 and current gain is 25. The power gain of the amplifier is:

In common emitter transistor, the input resistance is 200Omega and bad resistance is 40kOmega . If current gain is 80 then voltage gain is

In the common emitter amplifier circuit, Fig. an npn transistor with output voltage of the amplifier as 1 V, the current gain of transistor amplifier is :

A common emitter transistor amplifier has a current gain of 50 . If the load resistance is 4k Omega , and input resistance is 500 Omega , the voltage gain of amplifier is.

In a common emitter transistor amplifier the audio signal voltage across the collector is 3 V . The resistance of collector is 3 kOmega . If current gain is 100 and the base resistance is 2 kOmega , the voltage and power gain of the amlifier is :

AAKASH INSTITUTE-SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )-Assignment section -C (Previous years type question)
  1. The barrier potential of a p-n junction depends on : (i) type of semic...

    Text Solution

    |

  2. In a n-type semiconductor, which of the following statement is true?

    Text Solution

    |

  3. In a common emitter (CE) amplifier having a voltage gain G, the transi...

    Text Solution

    |

  4. In a CE transistor amplifier, the audio signal voltage across the coll...

    Text Solution

    |

  5. C and Si both have same lattice structure, having 4 bonding electrons ...

    Text Solution

    |

  6. The input resistance of a silicon transistor is 100 Omega. Base curren...

    Text Solution

    |

  7. To get an output Y=1 in given circuit which of the following input wil...

    Text Solution

    |

  8. A transistor is operated in common emitter configuration at V(c)=2 V s...

    Text Solution

    |

  9. If a small amount of antimony is added to germanium crystal

    Text Solution

    |

  10. In forward biasing of the p-n junction:

    Text Solution

    |

  11. Pure Si at 500 K has equal number of electron (n(e)) and hole (n(h)) c...

    Text Solution

    |

  12. A common emitter amplifier has a voltage gain of 50, an input impedanc...

    Text Solution

    |

  13. The device that can act as a complete electronic circuit is

    Text Solution

    |

  14. Which of the following statement is False?

    Text Solution

    |

  15. Which one of the following bonds produces a solid that reflects light ...

    Text Solution

    |

  16. For transistor action which of the following statement are correct (...

    Text Solution

    |

  17. A p-n photodiode is fabricated from a semiconductor with a band gap of...

    Text Solution

    |

  18. A transistor is operated in common emitter configuration at V(c)=2 V s...

    Text Solution

    |

  19. Sodium has body centred packing. Distance between two nearest atoms is...

    Text Solution

    |

  20. If the lattice parameter for a crystalline structure is 3.6Å, then the...

    Text Solution

    |