Home
Class 12
PHYSICS
The amplification factor of a triode val...

The amplification factor of a triode valve is 15. If the grid voltage is changed by `0.3` volt the change in plate voltage in order to keep the plate current constant (in volt) is

A

`0.02`

B

`0.002`

C

`4.5`

D

`5.0`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTRONICS

    ERRORLESS |Exercise Digital Electronics|2 Videos
  • ELECTRONICS

    ERRORLESS |Exercise Valve Electronics (Diode and Triode)|3 Videos
  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT AND X-RAYS

    ERRORLESS |Exercise Self Evaluation Test|3 Videos
  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos

Similar Questions

Explore conceptually related problems

The amplification factor of a triode is 50. If the grid potential is decreased by 0.20 V, what increase, in plate potential will keep the plate current unchanged ?

The amplification factor of a triode is 20. If the grid potential is reduced by 0.2 volt then to keep the plate current constant its plate voltage is to be increased by

The plate resistance and the amplification factor of a triode are 10 kOmega and 20 . The tube is operated at plate voltage 250 V and grid voltage -7.5 V . The plate current is 10 mA . (a) To what value should the grid voltage be changed so as to increase the plate current to 15 mA ? (b) To what value should the plate voltage be changed to take the plate current back to 10 mA ?

The dynamic plate resistance of a triode valve is 10 kOmega . Find the change in the plate current if the plate voltage is changed from 200 V to 220 V .

If the amplification factor of a triode (mu) is 22 and its plate resistance is 6600 ohm , then the mutual conductance of this valve is mho is

The amplification factor of a triode is 20 and trans-conductance is 3 milli mho and load resistance 3xx10^(4)Omega , then the voltage gain is

The plate voltage of a triode is increased from 225 V to 250 V, the grid voltage is changed from 4 to -4.7V to maintain plate current constant. The amplification factor of the tube is

The plate current in a triode valve is maximum when the potential of the grid is

ERRORLESS -ELECTRONICS-Selv Evaluation Test
  1. The amplification factor of a triode valve is 15. If the grid voltage ...

    Text Solution

    |

  2. In a pure silicon (n(i)=10^(16)//m^(3)) crystal at 300K, 10^(21) atoms...

    Text Solution

    |

  3. In the Boolean algebra bar(A).bar(B) equals is :-

    Text Solution

    |

  4. In the given circuit as shown the two input waveform A and B are appli...

    Text Solution

    |

  5. Two identical capacitors A and B are charged to the same potential V a...

    Text Solution

    |

  6. In transistor, forward bias is always smaller than the reverse bias. T...

    Text Solution

    |

  7. In NPN transistor, if doping in base region is increased then collecto...

    Text Solution

    |

  8. In the following circuit I(1) and I(2) are respectively

    Text Solution

    |

  9. In space charge limited region, the plate current in a diode is 10 mA ...

    Text Solution

    |

  10. A triode has a plate resistance of 10 k Omega and amplification factor...

    Text Solution

    |

  11. Pure sodium (Na) is a good conductor of electricity because the 3s and...

    Text Solution

    |

  12. Would there be any advantage to adding n-type or p-type impurities to ...

    Text Solution

    |

  13. In the following common emitter circuit if beta=100, V(CE)=7 V, V(BE)=...

    Text Solution

    |

  14. When a battery is connected to a P-type semiconductor with a metallic ...

    Text Solution

    |

  15. Is the ionisation energy of an isolated free atom different from the i...

    Text Solution

    |

  16. In the following circuit, a voltmeter V is connected across a lamp L. ...

    Text Solution

    |

  17. For given electric voltage signal dc value is

    Text Solution

    |

  18. When a silicon PN junction is in forwards biased condition with series...

    Text Solution

    |

  19. In the following circuit the equivalent resistance between A and B is

    Text Solution

    |

  20. In the following circuit of PN junction diodes D(1),D(2) and D(3) are ...

    Text Solution

    |

  21. In circuit in following figure the value of Y is-

    Text Solution

    |