Home
Class 12
PHYSICS
If alpha and beta are the current gain i...

If `alpha` and `beta` are the current gain in the CB and CE configuration respectively of the transistor circuit, then `(beta - alpha)//alphabeta =`......

A

`oo`

B

1

C

2

D

0.5

Text Solution

Verified by Experts

The correct Answer is:
B

`beta = (alpha)/(1-alpha) rArr alpha - beta = (alpha^(2))/(1-alpha)`
`beta - alpha = (alpha)/(1-alpha) - alpha = (alpha^(2))/(1-alpha)`
`:. (beta-alpha)/(alpha beta) = 1`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If alpha and beta are the current gain in the CB and CE configurations respectively of the transistor circuit, then (beta-alpha)/(alphabeta)=

If alpha and beta current gains in common-base and common-emitter configuration of a transistor, then beta is equal to

If the current gain in CB configuration is 0.96, then the current gain in the CE configuration will be

Find the relation between current gain alpha and beta of transistor.

The alpha and beta of a transistor are always

If for a transistor, beta = 49, then the value of alpha is

For a transistor if beta =100 then alpha will be

The relation between alpha and beta of a transistor is

The value of beta of a transistor is 19. The value of alpha will be

CAREER POINT-UNIT TEST 10-PHYSICS
  1. Identify the graph which correctly represent the Moseley's law-

    Text Solution

    |

  2. In X-ray tube , when the accelerating voltage V is halved, the differe...

    Text Solution

    |

  3. Light of wavelength lamda strikes a photoelectric surface and electron...

    Text Solution

    |

  4. Photoelectric emission is observed from a metallic surface for frequen...

    Text Solution

    |

  5. If K(1) and K(2) are maximum kinetic energies of photoelectrons emitte...

    Text Solution

    |

  6. Given that a photon of light of wavelength 10,000 angstrom has an ener...

    Text Solution

    |

  7. In an alpha -decay, the kinetic energy of alpha-particles is 48 MeV a...

    Text Solution

    |

  8. Carbon -14 decays with half-life of about 5, 800 years. In a sample of...

    Text Solution

    |

  9. A radioactive element decays by beta-emission. A detector records n be...

    Text Solution

    |

  10. Find the Q value of the reaction P + .^(7) Li rarr .^(4) He +.^(4) He....

    Text Solution

    |

  11. A nuclear fission is represented by the following reaction: U^(236) = ...

    Text Solution

    |

  12. The alongside is a plot of binding energy per nucleon E(b) ,against th...

    Text Solution

    |

  13. In the circuit shown in figure I(1),I(2) and I(D(2)) are respectively-

    Text Solution

    |

  14. In a common emitter amplifier, using output resistance of 5000 ohm and...

    Text Solution

    |

  15. In semiconductor the concentrations of electron and holes are 8xx10^(1...

    Text Solution

    |

  16. If alpha=0.98 and current through emitter i(e)=20 mA, the value of bet...

    Text Solution

    |

  17. The real time variation of input signals A & B are as shown below. If ...

    Text Solution

    |

  18. Which of the following is forward biased?

    Text Solution

    |

  19. If alpha and beta are the current gain in the CB and CE configuration ...

    Text Solution

    |

  20. A screw gauge has a least count of 0.005 mm and its head scale is divi...

    Text Solution

    |