Home
Class 12
PHYSICS
Three amplifiers each with a voltage gai...

Three amplifiers each with a voltage gain of 10 are connected in series. Then overall amplification is :

A

`10/3`

B

13

C

1000

D

none of these.

Text Solution

Verified by Experts

The correct Answer is:
C
Net voltage gain `A=A_1 xxA_2 xxA_3`
`=10xx10xx10`
= 1000
`:.` Overal amplification = 1000
Promotional Banner

Topper's Solved these Questions

  • SOLIDS & SEMICONDUCTOR DEVICES

    MODERN PUBLICATION|Exercise Multiple Choice Questions - LEVEL -I (ASSERTION)|5 Videos

  • SOLIDS & SEMICONDUCTOR DEVICES

    MODERN PUBLICATION|Exercise Multiple Choice Questions - LEVEL -I (PARAGRAPH)|6 Videos

  • ROTATIONAL MOTION

    MODERN PUBLICATION|Exercise RCQ|8 Videos

  • TRANSFERENCE OF HEAT

    MODERN PUBLICATION|Exercise Recent Competitive Questions|4 Videos

Similar Questions

Explore conceptually related problems

A resistor of 6kOmega with tolerance 10% and another of 4kOmega with tolerance 10% are connected in series. The tolerance of combination is about :

For a transistor amplifier, the voltage gain

If n cells each of emf xi are connected in series, the effective emf of the combination is :

Three capacitors each of capacitance 9pF are connected in series. (a) What is the total capacitance of the combination? (b) What is the potantial difference across each capacitor if the combination is connected to a 120 V supply?

Two capacitors each of capacitance 2mu f are connected in series. A third capacitor of capacitance 3 mu f is connected in parallel to this combination. The effective capacitance is

Two amplifiers are connected one after the other in series. The first amplifier has a voltage gain of 10 and the second has a voltage gain of 20. If the input signal is 0.01V. Calculate the output ac signal.

MODERN PUBLICATION-SOLIDS & SEMICONDUCTOR DEVICES-Revision Test
  1. Three amplifiers each with a voltage gain of 10 are connected in serie...

    Text Solution

    |

  2. Choose the forward biased p-n junction :

    Text Solution

    |

  3. Choose the reverse biased p-n junction :

    Text Solution

    |

  4. The forward biased characteristics of a p - n junction are :

    Text Solution

    |

  5. If Ie is emitter current , Ib is base current and Ic is the collector ...

    Text Solution

    |

  6. Zener diode is :

    Text Solution

    |

  7. The reverse biased characteristics of a p-n junction are :

    Text Solution

    |

  8. The advantage of BJT (Bipolar junction transistor) over vacuum tube tr...

    Text Solution

    |

  9. For an unknown element , the thickness of forbidden band is 4.97 eV an...

    Text Solution

    |

  10. At abosolute zero, a metal will behave as :

    Text Solution

    |

  11. A piece aluminium and germanium each, are cooled from T1 K to T2 K . T...

    Text Solution

    |

  12. One speaks of mutual characteristics in connection with L :

    Text Solution

    |

  13. In a frequency modulated wave :

    Text Solution

    |

  14. A small portion of Indium is incorporated is germanium . The crystal w...

    Text Solution

    |

  15. In a transistor the base is made very thin and a very hightly doped ...

    Text Solution

    |

  16. The safety limit of temperature for germanium and silicon are :

    Text Solution

    |

  17. A semiconductor diode designed to operate in breakdown region is calle...

    Text Solution

    |

  18. Power consumed by an ideal diode is :

    Text Solution

    |

  19. A conductor at very high temperature becomes :

    Text Solution

    |

  20. Zenor breakdown semiconductor

    Text Solution

    |

  21. Conduction - electron have more mobility than holes because these elec...

    Text Solution

    |