Home
Class 12
PHYSICS
No biase is applied to a P-N junction, t...

No biase is applied to a `P-N` junction, then the current

A

Is zero because the number of charge carriers flowing on both sides is same

B

Is zero because the charge carriers do not move

C

Is non zero

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
In unbiased condition of `PN`- junction, depletion region is generated which stops the movement of charge carriers.
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise Diode In Circuits|40 Videos

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise Junction Transistor|47 Videos

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise Classification Of Metals|64 Videos

  • NUCLEAR PHYSICS

    A2Z|Exercise Section D - Chapter End Test|29 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

No bias is applied to a P-N junction, then the current-

Different voltages are applied across a P-N junction and the currents are measured for each value. Which of the following graphs is obtained between voltage and current?

If no external voltage is applied across P-N junction, there would be -

If no external voltage is applied across P-N junction, there would be

When a forward bias is applied to a p -n junction. It

Explain with the help of a diagram, how depletion region and potential barrier are formed in a junction diode. If a small voltage is applied to a p-n junction diode how will the barrier potential be affected when it is (i) forward biased and (ii) reverse biased?

A potential difference is applied across (i) an issulator at 0 k (ii) a semiconductor at 0 k (iii) a metal at 0 k (iv) a reverse biased p-n junction diode at 300 k then the current passing through

On increases the reverse biase to a large value of in a PN - junction diode, current.

Assertion:The dominant mechanism for motion of charge carriers in forward and reverse biased silicon P-N junction are drift in both forward and reverse biase. Reason: In reverse biasing, no current flow through the junction.

A2Z-SEMICONDUCTOR ELECTRONICS-Junction Diode
  1. A device in which P and N-type semiconductors are used is more useful ...

    Text Solution

    |

  2. The depletion layer in diode is 1 mum wide and the knee potential is 0...

    Text Solution

    |

  3. If a full wave reactifier circuit is operating from 50 Hz mains, the f...

    Text Solution

    |

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

    Text Solution

    |

  5. Which of the following statement is not true ?

    Text Solution

    |

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

    Text Solution

    |

  7. In P-N junction, avalanche current flows in circuit when biassing is

    Text Solution

    |

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

    Text Solution

    |

  9. The reason of current flow in P-N junction forward biase is

    Text Solution

    |

  10. The resistance of a revese biased P-N junction diode is about

    Text Solution

    |

  11. No biase is applied to a P-N junction, then the current

    Text Solution

    |

  12. Zener diode is used as

    Text Solution

    |

  13. In P-N junction, the barrier potential offerse resistance to

    Text Solution

    |

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

    Text Solution

    |

  15. The approximate ratio of resistance in the forward and reverse biase o...

    Text Solution

    |

  16. In a forward biased PN- junction diode, the potential barrier in the d...

    Text Solution

    |

  17. Different voltages are applied across a P-N junction and the currents ...

    Text Solution

    |

  18. Consider the following statement A and B and identify the correct choi...

    Text Solution

    |

  19. A P-type semiconductor has acceptor levels 57 meV above the valence ba...

    Text Solution

    |

  20. Which one is forward biase?

    Text Solution

    |