Home
Class 12
PHYSICS
In a common base configuration the emitt...

In a common base configuration the emitter current changes by `5mA` when emitter voltage is changed by `200 mV` at a fixed collector to base voltage. The input resistance is.

A

`40 Omega`

B

`1000 Omega`

C

`2.5 Omega`

D

`4 Omega`

Text Solution

Verified by Experts

The correct Answer is:
A

`V_(BE)=I_(e) R_(i)`.
Promotional Banner

Topper's Solved these Questions

  • SEMI CONDUCTOR DEVICES

    NARAYNA|Exercise Level-II (C.W)|33 Videos
  • SEMI CONDUCTOR DEVICES

    NARAYNA|Exercise Level-III (C.W)|20 Videos
  • SEMI CONDUCTOR DEVICES

    NARAYNA|Exercise C.U.Q|155 Videos
  • RAY OPTICS AND OPTICAL INSTRAUMENTS

    NARAYNA|Exercise EXERCISE- 4 One or more than one correct answer type|13 Videos
  • SEMICONDUCTOR ELECTRONICS

    NARAYNA|Exercise ADDITIONAL EXERCISE (ASSERTION AND REASON TYPE QUESTIONS :)|19 Videos

Similar Questions

Explore conceptually related problems

A change of 400 mV in base-emitter voltage causes a change of 200 mu A in the base current. The input resistance of the transistor is

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 base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is

In a common base configuration, the transistor has emitter current of 10 mA and collector current of 9.8 mA. The value of base current is….

In a silicon transistor, base current is changed by 20muA . This result in a change of 0.02V in base-emitter voltage and a change of 2 mA in the collector current. Find the input resistance, beta_(a.c.) and transconductance of the transistor. The transistor is used as an amplifier with the load resistance 5k Omega . What is the voltage gain of the amplifier?

In a silicon transistor the base current is chage by 20muA and this changes the emitter base voltage by 0.02V and the collector current changes by 2 mA. If the transistor is used as an amplifier with load resistance 5kOmega , what is the voltage gain?

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)?

NARAYNA-SEMI CONDUCTOR DEVICES-Level-I (C.W)
  1. Pure Si at 300 K has equal electron (n(i)) concentrations of 1.5 xx 10...

    Text Solution

    |

  2. In a p-n junction the depletion region is 400 nm wide and electric fie...

    Text Solution

    |

  3. The reverse bias in a junction diode is changed from 5V to 15 V then t...

    Text Solution

    |

  4. A diode made of silicon has a barrier potential of 0.7 V and a current...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. In a P-N-P transistor, the collector current is 10 mA. If 90% of the h...

    Text Solution

    |

  8. A transistor has a base current of 1 mA and emitter current 100 mA. Th...

    Text Solution

    |

  9. When base -emitter voltage of a transistor connected in the common-emi...

    Text Solution

    |

  10. In a transistor circuit the base current changes from 30 mu A to 90 mu...

    Text Solution

    |

  11. The circuit gain of transistor in a common emitter circuit is 40. The ...

    Text Solution

    |

  12. In a common base configuration the emitter current changes by 5mA when...

    Text Solution

    |

  13. For a common base amplifier, The values of resistance gain and voltage...

    Text Solution

    |

  14. In a transistor amplifier beta = 62, R(L) = 5000 Omega and internal re...

    Text Solution

    |

  15. Decimal number 15 is equivalent to the binary number :

    Text Solution

    |

  16. Binary number 1001001 is equivalent to the decimal number :

    Text Solution

    |

  17. In the Binary number system 1 + 1=

    Text Solution

    |

  18. If A = B = 1, then in terms of Boolean algebra the value of A.B + A is...

    Text Solution

    |

  19. In the Bollean algebra, the following one which is not equal to A is.

    Text Solution

    |

  20. The logic expression which is NOT true in Boolean algebra is.

    Text Solution

    |