Home
Class 11
PHYSICS
In the CB mode of a transistor, when the...

In the `CB` mode of a transistor, when the collector voltage is changed by `0.5` volt. The collector current changes by `0.05 mA`. The output resistance will be

A

`10 k Omega`

B

`20 k Omega`

C

`5 k Omega`

D

`2.5 k Omega`

Text Solution

Verified by Experts

The correct Answer is:
A
`R_(0)=(DeltaV_(BC))/(DeltaI_(C))=(0.5V)/(0.05mA)=10kOmega`
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-3)|27 Videos

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-4)|51 Videos

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-1)|84 Videos

  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN|Exercise EXERCISE-IV|8 Videos

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-05)[B]|42 Videos

Similar Questions

Explore conceptually related problems

In a common base circuit, if the collector base voltage is changed by 0.6 V , collector current changes by 0.02mA . The output resistance will be

In a common emiter transistor circuit, if the collector-emitter voltages changes by 0.2V , the collector current changes by 0.004mA . What is the output resistance of the circuit,

If an emitter current is changed by 4 mA, the collector current changes by 3.5 mA. The value of beta will be :

In a common emitter circuit, if V_(CE) is changed by 0.2 V, then collector current changed by 4xx10^(-3)mA . Output resistance will be-

When base -emitter voltage of a transistor connected in the common-emitter mode is changed by 20 mV the collector current is changed by 25 mA . Find the transconductance.

A transistor is used in Common-emitter mode in an amplifier circuits. When a signal of 20 mV is added to the base-emitter voltage, the base current changes by 40 muA and the collector current changes by 2mA. The load resistance is 5 kOmega then the voltage gain is

When the voltage between emitter and the base V_(EB) of a transistor is chaged by 5 mV while keeping the collector voltage V_(CE) fixed when then its emitter current changes by 0.15 mA. Calculate the input resistance of the transistor.

A transistor is used in CE configuration, when a signal of "20mV" is added to the base- emitter voltage the base current changes by 20μA and collector current changes by 2mA .The load resistance 5kΩ . Then find the input resistance of amplifier (in kΩ)?

A transistor is used in a common-emitter mode in an amplifier circuit. When a single of 20 mV is added to the base-emitter voltage, the base current change by 20 muA and the collector current changes by 2mA . The load resistor in 5kOmega . What is the volume of beta ?

While a collector to emitter voltage is constant in a transistor, the collector current changes by 8.2 mA when the emitter current changes by 8.3 mA . The value of forward current ratio h_(fe) is

ALLEN-SEMICONDUCTORS-Part-3(Exercise-2)
  1. What is the voltage gain in a common emitter amplifier where input res...

    Text Solution

    |

  2. The current of transistor in common emitter mode is 49. The change in ...

    Text Solution

    |

  3. In the CB mode of a transistor, when the collector voltage is changed ...

    Text Solution

    |

  4. Zener diode is used as

    Text Solution

    |

  5. Consider an n-p-n transistor amplifer in common-emitter configuration....

    Text Solution

    |

  6. A transistor is used in common emitter mode as an amplifier. Then (1...

    Text Solution

    |

  7. An electric field us applied to a semiconductor.Let the number of char...

    Text Solution

    |

  8. Two identical p-n juctions may be connected in series with a battery i...

    Text Solution

    |

  9. In an n-p-n transistor circuit, the collector current is 20 mA. If 90 ...

    Text Solution

    |

  10. In sample of pure silicon 10^(13) "atom"//cm^(3) is mixed of phosphoru...

    Text Solution

    |

  11. Mobility of electron in N-type Ge is 5000 cm^(2)//"volt" sec and condu...

    Text Solution

    |

  12. A diode made forward biased by a two volt battery however there is a d...

    Text Solution

    |

  13. Forbidden energy gap of Ge is 0.75eV, maximum wave length of incident ...

    Text Solution

    |

  14. In the figure, the input is across the terminals A and C and the o...

    Text Solution

    |

  15. An oscillator is nothing but an amplifier with

    Text Solution

    |

  16. In the following common emitter configuration an NPN transistor with c...

    Text Solution

    |

  17. In the given transistor circuit, the base current is 35 muA. The value...

    Text Solution

    |

  18. In the cuircuit shown here the transistor used has a current gain beta...

    Text Solution

    |

  19. Choose the only false statement form the following

    Text Solution

    |

  20. What will be conductivity of pure sillicon crystal at 300 K temp? if e...

    Text Solution

    |