Home
Class 12
PHYSICS
A potential barrier of 0.3 V exists acro...

A potential barrier of 0.3 V exists across a p-n junction. If the depletion region is 1 `mu`m wide, what is the intensity of electric field in this region?

A

`2xx10^(5)Vm^(-1)`

B

`3xx10^(5)Vm^(-1)`

C

`4xx10^(5)Vm^(-1)`

D

`5xx10^(5)Vm^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B

Electric field `E=(V)/(d)=(0.3)/(1xx10^(-6))=3xx10^(5)Vm^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ELECTRONIC DEVICES

    MTG GUIDE|Exercise CHECK YOUR BEET VITALS|25 Videos
  • ELECTRONIC DEVICES

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|42 Videos
  • ELECTRONIC DEVICES

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|42 Videos
  • ELECTROMAGNETIC WAVES

    MTG GUIDE|Exercise AIPMT/NEET(MCQs)|15 Videos
  • ELECTROSTATICS

    MTG GUIDE|Exercise AIPMT/NEET (MCQ.s)|34 Videos

Similar Questions

Explore conceptually related problems

A potential barrier of 0.3V exists across a p-n junction. (a) if the depletion region is 1mum width. What is the intensity of elctric field in this region ? (b) An electron with speed 5xx10^(5)m//sec approaches this p-n junction from n -side, what will be its speed on entering the p -side?

A potential barrier of 0.4V exists across a p-n junction. If the depletion region is 4.0xx10^(-7)m wide, what is the intensity of the electric field in this region? If an electron with speed 4.5xx10^(5)m//s approaches the p-n junction from the n-side, find the speed with which it will enter the p-side.

A potential barrier of 0.60 V exixts across a p-n junction. If the depletion region is 6.0xx10^(-7)m wide, what is the intensity of the electric field in this region. An electrin with speed 5.0xx10^(5) ms^(-1) approaches the p-n junction from the n-side, with what speed will it enter p-side.

A potential barrier of 0.50 V exists across a P-N juntion. If the depletion region is 5.10xx10^(-7)m wide, the intensity of the electric field in this region is

A potential barrier of 0.50V exists across a p-n junction.(a) If the depletion region is 5.0xx10^(-7) m wide,what is the intensity of the electric field in this region?(b) An electron with speed 5.0xx10^(5)m s^(-1) approaches the p-n junction form the n-side.With what speed will it enter the p-side?

A potential barrier of 0.50 V exists across a P-N junction. If the depletion region is 5.0xx10^(-7)m , wide the intensity of the electric field in this region is

A potential barrier of 0.5V exists across a p-n junction . If the widht of depletion layer is 10^(-6) m, then intensity of electric field in this region will be

MTG GUIDE-ELECTRONIC DEVICES-NEET CAFÉ (TOPICWISE PRACTICE QUESTIONS)
  1. Region which have no free electron and holes in P-N junction is

    Text Solution

    |

  2. The current flowing through 10 Omega resistor in the circuit shown in ...

    Text Solution

    |

  3. A potential barrier of 0.3 V exists across a p-n junction. If the depl...

    Text Solution

    |

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

    Text Solution

    |

  5. In an unbiased p-n junction, holes diffuse from the p-region to n-regi...

    Text Solution

    |

  6. The circuit shown in the figure contains two diodes each with a forwar...

    Text Solution

    |

  7. In the circuit shown, the reading of the ammeter if diode is not ideal...

    Text Solution

    |

  8. Current through the ideal diode as shown in figure is

    Text Solution

    |

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

    Text Solution

    |

  10. A junction diode has a resistance of 25 Omega when forward biased and...

    Text Solution

    |

  11. Two identical p-n junctions may be connected in series in which a batt...

    Text Solution

    |

  12. In the given circuit the current through the battery is

    Text Solution

    |

  13. In the given circuit for ideal diode, the current through the battery ...

    Text Solution

    |

  14. When the voltage drop across a p.n junction diode is increased from 0....

    Text Solution

    |

  15. In the diode circuit shown in figure,

    Text Solution

    |

  16. The current through the ideal diode as shown in the figure is

    Text Solution

    |

  17. In which of the following figures, junction diode is forward biased?

    Text Solution

    |

  18. The circuit shown in the figure contains three diodes each with forwar...

    Text Solution

    |

  19. The vallue of ripple factor for full wave rectifier is

    Text Solution

    |

  20. Which is the correct diagram of a half- wave reactifier?

    Text Solution

    |