Home
Class 12
PHYSICS
In the energy band diagram of a material...

In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively. The material is a/an

A

a `p`-type semiconductor

B

an insulator

C

a metal

D

an `n`-type semiconductor

Text Solution

Verified by Experts

The correct Answer is:
A
NA
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    CP SINGH|Exercise Exercises|140 Videos

  • REFRACTION OF LIGHT BY PLANE SURFACES

    CP SINGH|Exercise Exercises|110 Videos

  • THERMAL AND ELECTRIC EFFECT oF CURRENT

    CP SINGH|Exercise Exercises|101 Videos

Similar Questions

Explore conceptually related problems

In the circuit diagram shown below , the magnitude and direction of the flow of current , respectively , would be

Which of the energy band diagrams shown in the figure corresponds to that of a semiconductor?

Assertion: If there is some gap between the conduction band and the valence band, electrons in the valence band all remain bound and no free electrons are available in the conduction band. Then the material is an insulator. Reason: Resistance of insulators is very low

If p is the resistivity of a material, and n is the number density of free electrons in it, the mean time between collisions between electrons in the material is given by: (m denotes the mass of an electron, and e denotes the charge on an electron)

Draw the "energy bands" diagram for a (i) pure semiconductor (ii) insulator. How does the energy band, foe a pure semiconductor, get affected when this semiconductor is doped with an acceptor impurity donor impurity? Hence discuss why the 'holes' and the 'electrons' respectively, become the 'majority charge carriers' in these two cases.

For the circle shown below, find the length. (in cm) of the largest cord of the circle.

Study the following diagram consisting of a circle, a rectangle and a triangle and answer the question given below it. If the circle is called 'rectangle rectangle is called triangle' and triangle is called 'circle', which number is only in the triangle but not in other two diagrams?

The energy band diagrams for three semiconductor samples of silicon are as shown. We can then assert that

CP SINGH-SEMICONDUCTORS-Exercises
  1. Which of the following energy band diagrams shows the N-type semicondu...

    Text Solution

    |

  2. The energy band diagrams for three semiconductor samples of silicon ar...

    Text Solution

    |

  3. In the energy band diagram of a material shown below, the open circles...

    Text Solution

    |

  4. The dominant mechanisms for motion of charge carriers in forward and r...

    Text Solution

    |

  5. A hole diffuses from the p-side to the n-side in a p-n junction.This m...

    Text Solution

    |

  6. In a p-n junction (i) new holes and conduction electrons are produce...

    Text Solution

    |

  7. In the case of forward biasing of PN-junction, which one of the follow...

    Text Solution

    |

  8. To make a PN junction conducting

    Text Solution

    |

  9. A potential barrier of 0.50 V exists across a P-N junction. If the de...

    Text Solution

    |

  10. The reverse biasing in a PN junction diode

    Text Solution

    |

  11. The cause of the potential barrier in a PN diode is

    Text Solution

    |

  12. The potential barrier, in the depletion layer, is due to

    Text Solution

    |

  13. Barrier potential of a p-n junction diode does not depend on

    Text Solution

    |

  14. The depletion layer in P-N junction region is caused by

    Text Solution

    |

  15. In a p- n junction diode not connected to any circuit,

    Text Solution

    |

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

    Text Solution

    |

  17. A semiconducting device is connected in a series circuit with a batter...

    Text Solution

    |

  18. The PN junction diode is used as

    Text Solution

    |

  19. Two PN-junction can be connected in series by three different methods ...

    Text Solution

    |

  20. In a p-n junction photo cell, the value of the of the photo electromo...

    Text Solution

    |