Home
Class 12
PHYSICS
In an n-p-n transistor circuit collector...

In an n-p-n transistor circuit collector current is 10 mA. If 90% of electrons from the emitter enter into the collector then,

A

emitter current =11.11 mA

B

emitter current =9mA

C

base current =2.1 mA

D

base current =0.9 mA

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise EXERCISE (Semiconductor diode )|1 Videos
  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise EXERCISE (Osillator )|1 Videos
  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise NCERT EXEMPLAR QUESTIONS WITH ANSWER HINT (Multiple Options Correct )|1 Videos
  • REFRACTION OF LIGHT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|11 Videos

Similar Questions

Explore conceptually related problems

In an n-p-n transistor circuit, the collector current is 10 mA. If 95% of the electrons emitted reach the collector, which of the following statements are true?

The coIIector current in an n-p-n transistor is 10 mA. If 99. 5% of the emitted eIectrons reach the coIIector, determine the emitter current, base current and ampIification factor of the transistor.

In a transistor the change in collector current is 706 mA for the change of emitter current of 8.0mA. What is the value of beta ?

An n-p-n transistor of current gain 80 in common emitter mode gives emitter current equal to 8.1mA. The base current is

The base current of a transistor is 105 mu A and collector current is 2.05 mA. A change of 27 mu A in the base current produces a change of 0.65 mA in the collector current. Find beta_(ac) .

Statement I : In CE mode of a transistor if the input signal is applied at base then the output signal is obtained at collector. Statement II : In a transistor most of the emitter current is transformed into the collector current.

The emitter of an n-p-n transistor emits 1.25 xx 10^(10) electrons per micro-second ( mu s). Find the emitter current in mA. (Given : electronic charge, e= 1.6xx10^(-19) coulomb).

In a transistor output characteristics commonly used in common emitter configuration, the base current I_B the collector current I_C and the collector-emitter voltage V_(CE) have values of the following orders of magnitude in the active region

An n-p-n transistor is Kept in common- emitter con- figuation. AmpIification factor of the transistor is 100.If the coIIector current is changed by 1 mA, what wiII by the corresponding change in the emitter current?

In a transistor output characteristic commonly used in common-emitter configuration the base current I_(B) the collector current I_(C) and the collector -emitter voltage "V"_(CE) have values of the following orders of the magnitude in the active region

CHHAYA PUBLICATION-SEMICONDUCTORS AND ELECTRONICS -EXERCISE (Multiple Choice Questions )
  1. Two pieces of copper and germanium are cooled from room temperature to...

    Text Solution

    |

  2. For in intrinsic semiconductor the energy gap of forbidden zone is app...

    Text Solution

    |

  3. In a semiconducting material the mobilities of electrons and holes a...

    Text Solution

    |

  4. In some substance charge can flow at ordinary temperature but not at v...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. If a p-n junction diode is not connected in a circuit then

    Text Solution

    |

  8. In the circuit shown in Fig 1.54 the forward bias resistances of both ...

    Text Solution

    |

  9. When a p-n diode is reverse biased then

    Text Solution

    |

  10. The current through the given circuit of Fig .1.56.

    Text Solution

    |

  11. The impurity atoms that should be added to germenium to make it n-type...

    Text Solution

    |

  12. The circuit has two oppositely connected ideal diodes in parallel. Wha...

    Text Solution

    |

  13. When a p-n junction is reverse biased then

    Text Solution

    |

  14. A Zener diode having breakdown voltage equal to 15V,is used in a volta...

    Text Solution

    |

  15. If the rate of doping in the emitter base and colletor of a transistor...

    Text Solution

    |

  16. In the active region of a transistor the biasisng at the emitter-base ...

    Text Solution

    |

  17. A transistor is used as

    Text Solution

    |

  18. In an n-p-n transistor circuit collector current is 10 mA. If 90% of e...

    Text Solution

    |

  19. For a transistor if (DeltaI(C))/(DeltaI(E))=0.96 then the current gain...

    Text Solution

    |

  20. A transistor is operated in common-emitter configuration at V(C)=2 V ...

    Text Solution

    |