Home
Class 12
PHYSICS
In a common base mode of transistor, col...

In a common base mode of transistor, collector current is `5.488 mA` for an emitter current of `5.60mA`. The value of the base current amplification factor `(beta)` will be :

A

45

B

50

C

55

D

60

Text Solution

Verified by Experts

The correct Answer is:
C

`beta=I_C/I_B=I_C/(I_E-I_B) = 5.5/(5.6-5.5)`=55
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 3|8 Videos
  • STATIONARY WAVES

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP-8|20 Videos

Similar Questions

Explore conceptually related problems

In a common base mode of a transition , the collector current is 5.488 mA for an emitter currect of 5.60 mA . The value of the base current amplification factor (beta) will be

In a common base configuration, the transistor has emitter current of 10 mA and collector current of 9.8 mA. The value of base current is….

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is

In a p-n-p transistor the emitter current is 10 mA and the collector current is 9 mA . Then the base current is

A transistor has a base current of 1 mA and emitter current 90 mA. The collector current will be

For a transistor emitter current is 40 mA and collector current is 35 mA find the beta of transistor

A transistor has a base current of 1 mA and emitter current 100 mA . The current transfer ratio will be

A transistor has a base current of 1 mA and emitter current 100 mA . The current transfer ratio will be

In a transistor if collector current is 25 mA and base current is 1 mA, then current amplification factor alpha is

MARVEL PUBLICATION-SEMICONDUCTORS -MCQs
  1. In a common-base amplifier, the phase difference between the input sig...

    Text Solution

    |

  2. A transistor connected in CE mode , has a current gain of 50. If the l...

    Text Solution

    |

  3. In a common base mode of transistor, collector current is 5.488 mA for...

    Text Solution

    |

  4. Three amplifier circuit are connected in series. The voltage gain of e...

    Text Solution

    |

  5. The current gain of a transistor in common base mode is 0.99. What is ...

    Text Solution

    |

  6. When a transistor amplifier having current gain of 75 is given an inpu...

    Text Solution

    |

  7. For a common emitter amplifier, input resistance (Ri) = 500Omega and l...

    Text Solution

    |

  8. In an NPN transistor the collector current is 24 mA. If 80% of electro...

    Text Solution

    |

  9. In a positive feedback oscillator, the feedback voltage (signal) and t...

    Text Solution

    |

  10. A transistor -oscillator using a resonant circuit with an inductor L (...

    Text Solution

    |

  11. In a transistor in CE configuration, the ratio of power gain to voltag...

    Text Solution

    |

  12. A common emitter amplifier gives an output of 3 V for an input of 0.01...

    Text Solution

    |

  13. The collector supply voltage is 6 V and the voltage drop across a resi...

    Text Solution

    |

  14. Transfer characterstics [output voltage (V(o)) vs. input voltage (V(i)...

    Text Solution

    |

  15. In NPN transistor, if doping in base region is increased then collecto...

    Text Solution

    |

  16. In a PNP transistor, N-type semiconductor is used as the

    Text Solution

    |

  17. Which one of the following is not necessary in a feedback oscillator ?

    Text Solution

    |

  18. The current gain ofa transistor is 100. If the base current changes by...

    Text Solution

    |

  19. In a common base mode of a transition , the collector current is 5.48...

    Text Solution

    |

  20. The current gain for a transistor working as a common-base amplifier i...

    Text Solution

    |