Home
Class 12
PHYSICS
The ratio of thermionic currents (I//I(0...

The ratio of thermionic currents `(I//I_(0))` for a metal when the temperature is slowly increased `T_(0)` to T as shown in figure. (I and `I_(0)` are currents at T and respectively). Then which one is correct?

A

A

B

B

C

C

D

D

Text Solution

Verified by Experts

The correct Answer is:
A
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 current (i) at time t= 0 and t = oo respectively for the given circuit is :

In the circuit as shown in figure, the ratio of current i_1//i_2 is

The current (I) and voltage (V) graphs for a given metallic wire at two different temperature (T_(1)) and (T_(2)) are shown in fig. It is concluded that

The voltage V and current I v graphs for a conductor at two different temperatures T_(1) and T_(2) are shown in the figure. The relation between T_(1) and T_(2) is

V- I graph for a metallic wire at two different temperature T_(1) and T_(2) is shown in figure. Which of the two temperature is higher and why?

The V - i graph for a conductor at temperature T_(1) and T_(2) are as shown in the figure. ( T_(2) - T_(1)) is proportional to

If Electric-current 'i' time (t) graph shown in figure. The average current in first 6 sec. is :-

If the thermionic current density is J and emitter temperature is T then the curve between (J)/(T^(2)) and (1)/(T) will be

ERRORLESS -ELECTRONICS-Selv Evaluation Test
  1. The ratio of thermionic currents (I//I(0)) for a metal when the temper...

    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

    |