Home
Class 12
PHYSICS
What is the voltage gain in a common emi...

What is the voltage gain in a common emitter amplifier, where input resistance is `3Omega` and load resistance `24Omega` and `beta=61` ?

A

8.4

B

488

C

240

D

0

Text Solution

Verified by Experts

The correct Answer is:
B

Voltage gain, `A_V=betaR_o/R_i=(61xx24)/3=488`
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS

    NCERT FINGERTIPS|Exercise Digital Electronics And Logic Gates|16 Videos
  • SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|8 Videos
  • SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS

    NCERT FINGERTIPS|Exercise Special Purpose P-N Junction Diode|8 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos
  • WAVE OPTICS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

What is the voltage gain in a common-emitter amplifier, where input resistance is 3Omega and load resistance 24Omega ? Take beta= 0.6 -

What is the voltage gain in a common emitter amplifier where input resistance is 3 Omega and load resistance is 24 Omega :- (beta = 6) ?

What is the voltage gain in a common emitter amplifier, where output resistance is 3 Omega and load resistance is 24 Omega (beta=0.6) ?

What is the voltage gain in a common emitter amplifier when the input resistance is 200 Omega and the load resistance is 1 K Omega ? ( beta = 50 )

What is the power gain in a CE amplifier, where input resistance is 3kOmega and load resistance 24 kOmega given beta=6 ?

A transistor, connected in common emitter configuration, has input resistance R_(i)=2kOmega and load resistance 6kOmega . If beta=60 and an input signal 10mV is applied, calculate the (i) resistance gain, (ii) voltage gain (iii) the power gain and (iv) the value of the output signal.

In a common emitter amplifier , the input resistance is 200 Omega and load resistance is 40 K Omega . If the current gain is 80, the voltage gasin of the amplifier is

In a common emitter amplifier , the input resistance is 1 Omega and load resistance is 10 K Omega . If the current gain is 100, the voltage gasin of the amplifier is

NCERT FINGERTIPS-SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS -Junction Transistor
  1. A transistor connected in common emitter mode, the voltage drop across...

    Text Solution

    |

  2. The power gain for common base amplifier is 800 and the voltage amplif...

    Text Solution

    |

  3. The current gain for a common emitter amplifier is 69. If the emitter ...

    Text Solution

    |

  4. The potential difference across the collector of a transistor, used in...

    Text Solution

    |

  5. In a common -emitter transistor amplifier, an increase of 50muA in the...

    Text Solution

    |

  6. For a common emitter transistor amplifier, the audio signal voltage ac...

    Text Solution

    |

  7. The ac current gain of a transistor is 120. What is the change in the ...

    Text Solution

    |

  8. In an n-p-n circuit transistor, the collector current is 10 mA. If 80%...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  12. The input resistance of a transistor is 1000 Omega on charging its bas...

    Text Solution

    |

  13. A transistor has a current gain of 30. If the collector resistance is ...

    Text Solution

    |

  14. In a transistor connected in a common emitter mode RC = 4kOmega, R1 = ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  17. What is the voltage gain in a common emitter amplifier, where input re...

    Text Solution

    |

  18. An amplifier has a voltage gain of 100. The voltage gain in dB is

    Text Solution

    |

  19. A transistor is operated in common emitter configuration at VC=2 V. S...

    Text Solution

    |

  20. Fig.shows that transfer characteristics of a base biased CE transistor...

    Text Solution

    |