Home
Class 12
PHYSICS
In silicon diode, the reverse current in...

In silicon diode, the reverse current increases from 10A to `20 muA` . When the reverse voltage change from 2V to 4V . Find the reverse a.c. resistance of the diode

A

`3xx10^(-5) Omega`

B

`2xx10^(5) Omega`

C

`1xx10^(5) Omega`

D

`4xx10^(5) Omega`

Text Solution

Verified by Experts

The correct Answer is:
B

`r_(r)=(deltaV)/(deltaI)=(2)/(10xx10^(-6))=0.2xx10^(6) Omega`.
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    NIKITA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|405 Videos
  • STATIONARY WAVES

    NIKITA PUBLICATION|Exercise MCQs|396 Videos

Similar Questions

Explore conceptually related problems

In a silicon diode,the forward current changes by 2.5mA when the voltage changes from 0.08 to 0.09V then the forward dynamic ac resistance of the diode is

The reverse currents corresponding to reverse voltages 10 V and 20 V are 25 muA and 50 muA respectively . The reverse resistance is

In a reverse biased diode, when the applied voltage changes by 1V , the current is found to change by 0.5muA . The reversebiase resistance of the diode is

In a p-n junction diode the reverse saturation current is 10 muA . What will be the forward current for a voltager of 0.2 V ?

How reverse current suddenly increase at the breakdown voltage in case of zener diode?

On increasing reverse voltage in a p-n junction diode the value of reverse current will

In a silicon transistor, the base current is changed by 20 muA . This results in a change of 0.02 V in base to emitter voltage and a change of

NIKITA PUBLICATION-SEMICONDUCTORS-MCQS
  1. To get NOT gate from NAND gate, we need

    Text Solution

    |

  2. In an unbiased p-n junction diode the thickness of the deplection laye...

    Text Solution

    |

  3. In silicon diode, the reverse current increases from 10A to 20 muA . W...

    Text Solution

    |

  4. A P-N junction diode can withstand currents up to 10 mA. Under forward...

    Text Solution

    |

  5. An a.c. voltage of peak value 20 V is connected in series with a silic...

    Text Solution

    |

  6. Four silicon diodes are connected as shown in the figure. Assuming the...

    Text Solution

    |

  7. The circuit shown in figure (1) Contains two diodes each with a forwar...

    Text Solution

    |

  8. In a half wave rectifier output is taken across a 90 ohm load resistor...

    Text Solution

    |

  9. In a full wave rectifier output is taken across a load resistor of 800...

    Text Solution

    |

  10. If a change of 100 mu A in the base current of an n-p-n transistor in ...

    Text Solution

    |

  11. A transistor connected in common emitter mode, the voltage drop across...

    Text Solution

    |

  12. In a n-p-n transistor 10^(10) electrons enter the emitter in 10^(-6)s....

    Text Solution

    |

  13. Ap-n-p transistor is used in common-emitter mode in an amplifier circu...

    Text Solution

    |

  14. The current gain 'a' of a transistor is 0.95 . What would be the chang...

    Text Solution

    |

  15. A transistor connected in common emitter configuration has input resis...

    Text Solution

    |

  16. Which of the following diodes is forward biased ?

    Text Solution

    |

  17. Which of the following diodes is reverse biased?

    Text Solution

    |

  18. In which of the following figure the junction diode is reverse biased ...

    Text Solution

    |

  19. In the figure shown, current passing through the diode is

    Text Solution

    |

  20. The resitance of the diode in forward bias condition is 20Omega and in...

    Text Solution

    |