Home
Class 12
PHYSICS
A zener diode, having breakdown voltage ...

A zener diode, having breakdown voltage equal to `15 V` is used in a voltage regulator circuit shown in the figure. The current through the diode is

A

10 mA

B

15 mA

C

20 mA

D

5 mA

Text Solution

Verified by Experts

The correct Answer is:
D
Voltage across zener diode is constant

`(i)_(kOmega)=(15"volt")/(1kOmega)=15mA`
`(i)_(250kOmega)=((20-15)V)/(250Omega)=(5V)/(250Omega)=(20)/(1000)A=20mA`
`:. (i)_("zener diode")=(20-15)=5mA`
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    RESONANCE|Exercise Exercise 2|16 Videos

  • REVISION DPP

    RESONANCE|Exercise All Questions|444 Videos

  • SIMPLE HARMONIC MOTION

    RESONANCE|Exercise Advanced Level Problems|13 Videos

Similar Questions

Explore conceptually related problems

A zener diode having breakdown voltage equal to 15V, is used in a voltage regulator circuit shown in figure. Find the current through the diode.

A zener diode has a breakdown voltage of 10 V and is used in a voltage regulator circuit as shown in the given figure what will be current through the diode

A Zener diode of breakdown voltage "10V" is used as a voltage regulator as shown in the figure. The current through the Zener diode is:

From the Zener diode circuit shown in figure, the current through the Zener diode is

In the circuit shown,find the current through the Zener diode.

Find current through Zener diode–

RESONANCE-SEMICONDUCTORS-Exercise 3
  1. In the following figure, the diodes, which are forward biased, are

    Text Solution

    |

  2. Pure Si at 500K has equal number of electron (n(e)) and hole (n(h)) co...

    Text Solution

    |

  3. A zener diode, having breakdown voltage equal to 15 V is used in a vol...

    Text Solution

    |

  4. A transistor is operated in common emitter configuration at V(c)=2 V s...

    Text Solution

    |

  5. In forward biasing of the p-n junction:

    Text Solution

    |

  6. If a small amount of pentavalent atoms is added to germanium crystal:

    Text Solution

    |

  7. Value of forbidden energy gap for semi conductor is:

    Text Solution

    |

  8. Ga As is a/an:

    Text Solution

    |

  9. The number of free electrons is Si at normal temperature is

    Text Solution

    |

  10. Regarding a semiconductor which one of the following statements is wro...

    Text Solution

    |

  11. For making p-n junction diode forward biased:

    Text Solution

    |

  12. In a good conductor of electricity the type of bonding that exists is ...

    Text Solution

    |

  13. Which of the following statements is true for an n-type semi-comductor...

    Text Solution

    |

  14. A light emitting diode has a voltage drop of 2 v across it and passes ...

    Text Solution

    |

  15. The minimum potential difference between the base and emitter required...

    Text Solution

    |

  16. A p-n junction diode is reverse biased. Then

    Text Solution

    |

  17. The difference in the variation of resistance with temperature in a me...

    Text Solution

    |

  18. If the input is given between A and C, thent he output at the ends of ...

    Text Solution

    |

  19. The majority charge carriers in P-type semiconductors are

    Text Solution

    |

  20. Wires P and Q have the same resistance at ordinary (room) temperature....

    Text Solution

    |