Home
Class 12
PHYSICS
A common emitter amplifier gives an outp...

A common emitter amplifier gives an output of 3 V for an input of 0.01 V. If `beta` of the resistance is 100 and the input resistance is `1 kOmega`. then the collector resistance is

A

`1k Omega`

B

`3 k Omega`

C

`30k Omega`

D

`30Omega`

Text Solution

Verified by Experts

The correct Answer is:
B

`A_(v)=beta(R_(0))/(r_(i))`
`implies(3)/(0.01)=100xx(R_(0))/(1xx10^(3))impliesR_(0)=3kOmega`.
Promotional Banner

Topper's Solved these Questions

  • ELECTRONICS

    ERRORLESS|Exercise Assertion & Reason|26 Videos
  • ELECTRONICS

    ERRORLESS|Exercise NCERT Based Questions (Digital Electronics)|23 Videos
  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise ASSERTION & REASON|27 Videos
  • ELECTROSTATICS

    ERRORLESS|Exercise ASSERTION & REASON|25 Videos

Similar Questions

Explore conceptually related problems

a common emitter amplifier gives an output of 3V for an input of 0.01 V. if current gain of the transistor is 100 and the input resistance is 1 k Omega . Then the collector resistance is

A non transistor operates as a common emitter amplifier, with a power gain of 60 dB. The input circuit resistance is 100 Omega and the output load resistance is 10 k Omega . The common emitter current gain beta is:

An npn transistor operates as a common emitter amplifier with a power gain of 10^6 . The input circuit resistance is 100 Omega and the output load resistance is 10 k Omega . The common emitter current gain ' beta ' will be (Round off to the Nearest Integer)

A common emitter transistor amplifier has a current gain of 50 . If the load resistance is 4k Omega , and input resistance is 500 Omega , the voltage gain of amplifier is.

A transistor has a current gasin of 30. If the collector resistance is 6kOmega , input resistance is 1kOmega , calculate its voltge gain?

A common emitter circuit is used as an amplifier. Its current gain is 50 . If the input resistance is 1kohm and the input voltage is 5 V , then the output current (in mA) will be

A transistor has a current gainn of 50. If the collector resistance is 5 k Omega and the input resistance is 1kOmega (approx), find the voltage gain of the amplifier.

ERRORLESS-ELECTRONICS-Past years questions
  1. An amplifier has a voltage gain A(V)=1000. The voltage gain in dB is

    Text Solution

    |

  2. A common emitter amplifier has a voltage gain of 50, an input impedanc...

    Text Solution

    |

  3. A common emitter amplifier gives an output of 3 V for an input of 0.01...

    Text Solution

    |

  4. The input resistance of a common emitter transistor amplifier, if the ...

    Text Solution

    |

  5. In a CE transistor amplifier, the audio signal voltage across the coll...

    Text Solution

    |

  6. In a common emitter (CE) amplifier having a voltage gain G, the transi...

    Text Solution

    |

  7. The input signal given to a CE amplifier having a voltage gain of 150 ...

    Text Solution

    |

  8. A n-p-n transisitor is connected in common emitter configuration in a ...

    Text Solution

    |

  9. In the following common emitter configuration an n-p-n transistor with...

    Text Solution

    |

  10. The voltage gain of an amplifier with 9% negative feedback is 10. The ...

    Text Solution

    |

  11. The voltage gain of the following amplifier is

    Text Solution

    |

  12. For CE transistor amplifier, the audio signal voltage across the colle...

    Text Solution

    |

  13. In a p-n junction diode, change in temperature due to heating

    Text Solution

    |

  14. In the circuit shows in the figure, the input voltage V(i) is 20 V,...

    Text Solution

    |

  15. In a common emitter transistor amplifier the audio signal voltage acro...

    Text Solution

    |

  16. Boolean algebra is essentially based on

    Text Solution

    |

  17. The output of OR gate is 1

    Text Solution

    |

  18. The following figure shows a logic gate circuit with two inputs A and ...

    Text Solution

    |

  19. Which of the following logic gates is an universal gate?

    Text Solution

    |

  20. The output (X) of the logic circuit shown in figure will be

    Text Solution

    |