Home
Class 12
PHYSICS
When suitable impurity is added to p...

When suitable impurity is added to pure intrinsic semiconductor , the electrical conductivity ______.

A

increase its life

B

enable it to withstand higher voltages

C

increase its electrical conductivity.

D

increase its electrical resistivity.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise Critical thinking|32 Videos

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise Competitive thinking|110 Videos

  • ROTATIONAL MOTION

    TARGET PUBLICATION|Exercise MCQ|245 Videos

  • STATIONARY WAVES

    TARGET PUBLICATION|Exercise EVALUATION TEST|16 Videos

Similar Questions

Explore conceptually related problems

Intrinsic Semiconductors

In an intrinsic semiconductor

When on impurity is doped into an intrinsic semiconductor, the conductivity of the semiconductor

Intrinsic semiconductor and its properties

When an impurity is doped into an intrinsuc semiconductor,the conductivity of the semiconductor

TARGET PUBLICATION-SEMICONDUCTORS-Evaluation Test
  1. When suitable impurity is added to pure intrinsic semiconductor ...

    Text Solution

    |

  2. Which of the energy band diagrams shown in the figure corresponds to t...

    Text Solution

    |

  3. A zener-regulated power supply consists of a 9 V battery connected in ...

    Text Solution

    |

  4. The current gain of a transistor is 0.94. The change in collector curr...

    Text Solution

    |

  5. For a photodiode, the forbidden energy gap (Eg) of the material used i...

    Text Solution

    |

  6. If the two ends p and n of p-n junction diode are joined by a wire,

    Text Solution

    |

  7. Assertion : A transistor amplifier in common emitter configuration ha...

    Text Solution

    |

  8. Assertion : In a transistor the base is made thin. Reason: A thin b...

    Text Solution

    |

  9. Carbon, silicon and germanium have four valence electrons each. The mo...

    Text Solution

    |

  10. The input resistance of a CE amplifier is 400 Omega and the load resis...

    Text Solution

    |

  11. The number densities of electrons and holes in a pure germanium at roo...

    Text Solution

    |

  12. For a transistor amplifier, the voltage gain

    Text Solution

    |

  13. A common-emitter amplifier, has an input resistance of 500Omega and an...

    Text Solution

    |

  14. A p-n junction diode when forward biased has a drop of 0.4 V which is ...

    Text Solution

    |

  15. A transistor has alpha=0.96. If the emitter current is 8 mA, what are ...

    Text Solution

    |

  16. In an n-p-n transistor 10^(10) electrons enter the emitter in 10^(-6) ...

    Text Solution

    |

  17. A transistor is connected in common-emitter (CE) configuration.The col...

    Text Solution

    |

  18. The maximum wavelength which a photodiode can detect with Eg=0.74 eV i...

    Text Solution

    |