Home
Class 12
PHYSICS
A working transitor with its three legs ...

A working transitor with its three legs marked `P, Q and R` is tested using a multimeter No conduction is found between `P, Q `by connecting the common (negative) terminal of the multimeter to `R`and the other (positive) terminal to or `Q` some resistance is seen on the multimeter . Which of the following is true for the transistor ?

A

It is a pnp transistor with R as collector

B

It is a pnp transistor with R as emitter

C

It is an npn transistor with R as collector

D

It is an npn transistor with R as base

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise EXERCISE - 2|32 Videos
  • ELECTROMAGNETISM

    MOTION|Exercise Exercise|136 Videos
  • ELECTROSTATICS

    MOTION|Exercise Exercise -3 Section (B) Previous Year Problems | JEE Main|30 Videos
MOTION-ELECTRONICS - SEMI CONDUCTOR-EXERCISE - 3
  1. The manifestation of band structure in solids is due to

    Text Solution

    |

  2. When p-n junction diode is forward biased then

    Text Solution

    |

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

    Text Solution

    |

  4. In a full wave rectifier circuit operating from 50 Hz mains frequency ...

    Text Solution

    |

  5. In a common-base amplifier, the phase difference between the input sig...

    Text Solution

    |

  6. If the ratio of the concentration of electron to that of holes in a se...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  10. In the following, which one of the diodes is reverse biased –

    Text Solution

    |

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

    Text Solution

    |

  12. If a p-n junction diode, a square input signal of 10 V is applied as s...

    Text Solution

    |

  13. Carbon , silicon and germanium have four valence electrons each . At r...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. a p -n juction (D) shown in the figure can act an a rectifier An alter...

    Text Solution

    |

  17. The forward biased diode connection is

    Text Solution

    |

  18. The temperature dependence of resistance of Cu and undoped Si in the t...

    Text Solution

    |

  19. Identify the semiconductor devices whose characteristics are given bel...

    Text Solution

    |

  20. For a common emitter configuration if alpha and beta have their usual ...

    Text Solution

    |