Home
Class 12
PHYSICS
Assertion: Zener diode works on a princi...

Assertion: Zener diode works on a principle of of breakdown voltage.
Reason: Current increases suddenly after breakdown voltage.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
A

When the reverse voltage across the zener diode is equal to or more than the breakdown voltage, the reverse current increases sharply.
Promotional Banner

Topper's Solved these Questions

  • ELECTRONICS

    ERRORLESS|Exercise Past years questions|73 Videos
  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise ASSERTION & REASON|27 Videos
  • ELECTROSTATICS

    ERRORLESS|Exercise ASSERTION & REASON|25 Videos

Similar Questions

Explore conceptually related problems

Assertion: Zener diode works on aa principle of of breakdown voltage. Reason: Current increases suddenly after breakdown voltage.

The sharp range of breakdown voltage in Zener diode is

Three capacitors each of capacitance C and of breakdown voltage V are joined in series . The capacitance and breakdown voltage of the combination will be

Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be

Assertion : Zener diode is used to obtain voltage regulation Reason : When Zener diode is operated in reverse bias, after a certain voltage (breakdown voltage) the current suddenly increases.

Two Zener diodes having specification 12V, 1/4W are connected in series. If breakdown voltage of each diode is 5V, then what is the breakdown voltage in the series combination of the diodes?

Two capacitor each having capacitance C and breakdown voltage V are joind in series .The capacitance and the breakdown voltage of the combination will be

Suppose an unregulated D.C. input voltage V_(1) is applied to a Zener diode having breakdown voltage (V_(z)) . Then the breakdown condition for the diode to work as voltage regulator is

ERRORLESS-ELECTRONICS-Assertion & Reason
  1. Statement-1 : The temperature coefficient of resistance is positive fo...

    Text Solution

    |

  2. Assertion: Electron has higher mobility than hole in a semiconductor. ...

    Text Solution

    |

  3. Assertion : An N-type semiconductor has a large number of electrons bu...

    Text Solution

    |

  4. Assertion : Light emitting diode (LED) emits spontaneous radiation. ...

    Text Solution

    |

  5. Assertion: Silicon is preferred over germanium for making semiconducto...

    Text Solution

    |

  6. Assertion: We can measure the potential barrier of a PN junction by pu...

    Text Solution

    |

  7. Assertion : The energy gap between the valence band and conduction ban...

    Text Solution

    |

  8. Assertion: Two P-N junction diodes placed back to back, will work as a...

    Text Solution

    |

  9. Assertion : In transistor common emitter mode as an amplifier is pre...

    Text Solution

    |

  10. Assertion:The dominant mechanism for motion of charge carriers in forw...

    Text Solution

    |

  11. Statement-I : A p-n junction with reverse bias can be used as a photod...

    Text Solution

    |

  12. Assertion: NAND or NOR gates are called digital building blocks. Rea...

    Text Solution

    |

  13. Assertion : In common base configuration, the current gain of the tran...

    Text Solution

    |

  14. Assertion : In the following circuit the potential drop across the res...

    Text Solution

    |

  15. Assertion: The current gain in common base circuit is always less than...

    Text Solution

    |

  16. Assertion: V-i charcteristic of P-N junction diode is same as that of ...

    Text Solution

    |

  17. Assertion: Zener diode works on a principle of of breakdown voltage. ...

    Text Solution

    |

  18. Assertion: NOT gate is also called inverter circuit. Reason: NOT gat...

    Text Solution

    |

  19. Assertion: De Morgan's theoram bar(A+B)=bar(A).bar(B) may be explained...

    Text Solution

    |

  20. Assertion: A P-N photodiode is made from a semiconductor for which E(...

    Text Solution

    |