Home
Class 11
PHYSICS
When a n-p-n transistor is used as an am...

When a n-p-n transistor is used as an amplifier, then

A

electrons move from base to collector

B

holes move from emitter to base

C

electrons move from collector to base

D

holes move from base to emitter

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-3)|27 Videos
  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN|Exercise EXERCISE-IV|8 Videos
  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-05)[B]|42 Videos
ALLEN-SEMICONDUCTORS-Part-3(Exercise-4)
  1. In the middle of the depletion layer of a reverse-biased p - n junctio...

    Text Solution

    |

  2. Consider telecommunication through optical fibers. Which of the follow...

    Text Solution

    |

  3. When a n-p-n transistor is used as an amplifier, then

    Text Solution

    |

  4. For a transistor ampliflier in common emiter configuration for load im...

    Text Solution

    |

  5. A piece of copper are another fo germanium are cooled from room temper...

    Text Solution

    |

  6. When p-n junction diode is forward biased, then

    Text Solution

    |

  7. The electrical conductivity of a semiconductor increases when electrom...

    Text Solution

    |

  8. In a common base amplifier the phase difference the input signal volta...

    Text Solution

    |

  9. If a full wave rectifier circuit is operating from 50 Hz mains, the fu...

    Text Solution

    |

  10. In a common-base of mode of transistor, the collector current is 5.488...

    Text Solution

    |

  11. A solid which is not transperent to visible light and whose conductivi...

    Text Solution

    |

  12. If the ratio of the concentration of electrons and that of holes in a ...

    Text Solution

    |

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

    Text Solution

    |

  14. In the following, which one of the diodes is reverse biased ?

    Text Solution

    |

  15. If the lattice constant of this semiconductor is decreased, then which...

    Text Solution

    |

  16. Carbon, silicon and germanium have four valence electrons each. At roo...

    Text Solution

    |

  17. If in a p-n junction, a square input signal of 10 V is applied as show...

    Text Solution

    |

  18. A working transitor with its three legs marked P, Q and R is tested us...

    Text Solution

    |

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

    Text Solution

    |

  20. A p -n junction (D) shown in the figure can act as a rectifier. An alt...

    Text Solution

    |