Home
Class 12
PHYSICS
A PN junction diode when forward biased ...

A `PN` junction diode when forward biased has a drop of `0.5 V` which is assumed to be independent of current. The current in excess of `10 mA` through the diode produces large joule heating which damages the diode. If we diode, the resistor used in series with the diode so that the maximum current does not exceed `5 mA` is.
.

Text Solution

Verified by Experts

The correct Answer is:
B
Let R be the resistance of resistor used in series with p-n junction diode in the circuit. Then
`I=((1.5-0.5))/R=1.0/R`
or `R=1.0/I=(1.0V)/(5 mA)=200Omega=2xx10^(2)Omega`
Promotional Banner

Topper's Solved these Questions

  • ELECTRONIC DEVICES

    PRADEEP|Exercise LONG QUESTION ANSWER|2 Videos

  • ELECTRONIC DEVICES

    PRADEEP|Exercise PROBLEMS FOR PRACTICE|7 Videos

  • ELECTRONIC DEVICES

    PRADEEP|Exercise HIGHER ORDER THINKING SKILLS|1 Videos

  • ELECTROMAGNETIC WAVES

    PRADEEP|Exercise II Focus multiple choice question|5 Videos

  • ELECTROSTATICS

    PRADEEP|Exercise ASSERTION-REASON TYPE QUESTIONS|2 Videos

Similar Questions

Explore conceptually related problems

A p-n junction diode when forward biased has a drop of 0.5V which is assumed to be independent of current. The current in excess of 10mA through the diode produces a large Joule heating which damages (burns) the diode. If we want to use a 1.5V battery to forward bias the diode, what should be the vlaue of resistor used in series with the diode so that the maximum current does not exceed 5mA ?

A p-n junction diode when forward baiased has a drop of 0.5 V which is assumed to be independent of current. The current in excess of 10 mA through the diode produces a large joule heating which damages (burns) the diode. If we want to use a 15.V battery to forward bias diode a resistor of resistance axx10^(2)Omega is to be used in serise with the diode so that the maximum current does not exceed 5mA. what is the value of a?

A p-n jucntion when forward biased has a drop of 0.7 V which is assumed to be independent of current. The current in excess of 10 Ma through the diode produces a large joule heating effect which burns the diode. If we want to use 1.6 V battery to forward ibas the diode, the value of resistor used in series with the diode so that the maximum current does not exceed 6 mA should be

A p-n junction when forward biased has a drop of 0.6 V which is assumed to be independent of current. The current in excess of 10 mA through the diode produces a large joule heating effect which burns the diode. If we want to use 1.5 V battery to forward bias the diode, what should be the value of resistor used in series with the diode so that the maximum current does not exceed 6 mA?

A p-n junction diode when forward biased has a drop of 0.4 V which is assumed to be independent of current. A current excess of 10 mA through the diode damages (burns ) the diode. If we want to use a 2 V battery to forward bias the diode, what should be the value of resistor used in series with the diode so that the maximum current does not exceed 5 mA?

A diode made forward biased by a two volt battery however there is a drop of 0.5 V across the diode which is independent of current. Also a current greater then 10 mA produces large joule loss and damages diode. If diode is to be operated at 5 mA, the series resistance to be put is

A two volt battery forward biased and a diode. However, there is a drop of 0.5 V across the diode which is independent of current. Also, a current greater than 10 mA produces large joule loss and damages diode. If diode is to be operated at 5 mA, then the series resistance to be put is

A P-N junction diode can withstand currents up to 10 mA . Under forward bias, The diode has a potential drop of 0.5 V across it which is assumed to be independent of current. The maximum voltage of the battery used to forward bias the diode when a resistance of 200 Omega is connected in series with it is

When a diode is forward biased, it has a voltage drop of 0.5 V. The safe limit of current through the diode is 10 mA. If a battery of emf 1.5 V is used in the circuit, the value of minimum resistance to be connected in series with the diode so that the current does not exceed the safe limit is :

PRADEEP-ELECTRONIC DEVICES-Exercise
  1. When a p-type semiconductor is brought into a close contact with n-typ...

    Text Solution

    |

  2. When a p-type semiconductor is brought into a close contact with n-typ...

    Text Solution

    |

  3. A PN junction diode when forward biased has a drop of 0.5 V which is a...

    Text Solution

    |

  4. The diode used in the circuit shown in the figure has a constant volta...

    Text Solution

    |

  5. For a transistor connected in common emitter mode, the voltage drop ac...

    Text Solution

    |

  6. In a common emitter amplifier the load resistance of the output circui...

    Text Solution

    |

  7. The number desnity of donor atoms which have to be added to an intrins...

    Text Solution

    |

  8. Assertion : The value of current through P - n junction in the given f...

    Text Solution

    |

  9. Assertion : In a common emitter transistor amplifier, the input curren...

    Text Solution

    |

  10. Assertion : Any logic can be constructed using NAND gate Reason : NA...

    Text Solution

    |

  11. Assertion : The electrons in the conduction band have higher energy th...

    Text Solution

    |

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

    Text Solution

    |

  13. Assertion : p-n junction diode can be used even at ultra high frequenc...

    Text Solution

    |

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

    Text Solution

    |

  15. Assertion : The colour of light emitted by a LED depends on its forwar...

    Text Solution

    |

  16. Assertion : When baseregion has larger width, the collector current in...

    Text Solution

    |

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

    Text Solution

    |

  18. Statement-1 : The temperature coefficient of resistance is positive fo...

    Text Solution

    |

  19. Statement-1 : When the temperature of a semiconductor is increased, th...

    Text Solution

    |

  20. Statement-1 : A p-type semiconductor has ney positive charge on it. ...

    Text Solution

    |