Home
Class 11
PHYSICS
An unknown transistor needs to be identi...

An unknown transistor needs to be identified as `npn` and `pnp` type. A multimeter, wilth `+ve` and `-ve` terminals is used to measure resistance between different terminals transistor. If terminal `2` is the base of the transistor then which of the following is correct for a `pnp` transistor?

A

`+ve` terminal `2,+ve` terminal 2, resistance high

B

`+ve` terminal `1,-ve` terminal 2, resistance high

C

`+ve` terminal `2,-ve` terminal 2, resistance low

D

`+ve` terminal `2,-ve` terminal 1, resistance high

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    ALLEN |Exercise Part-3(Exercise-3)|27 Videos
  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN |Exercise EXERCISE-IV|7 Videos
  • WAVES AND OSCILLATIONS

    ALLEN |Exercise Part-1(Exercise-05)[B]|42 Videos

Similar Questions

Explore conceptually related problems

A working transitor with its three legs marked P, Q and R is tested using a multimeter No conduction is found between P, Q by connecting the common (negative) terminal of the multimeter to R and the other (positive) terminal to or Q some resistance is seen on the multimeter . Which of the following is true for the transistor ?

A change of 0.04 V takes place between the base and the emitter when an input signal is connected to the CE transistor amplifier. As a result, 2014 change take place in the base current and a change of 2 mA lakes place in the collector current. Find the input resistance and A.C. current gain.

ALLEN -SEMICONDUCTORS-Part-3(Exercise-4)
  1. Truth table for system of four NAND gates as shown in figure is : .

    Text Solution

    |

  2. A diode detector is used to detect an amplitude modulated wave of 60% ...

    Text Solution

    |

  3. The I- V characteristic of on LED is

    Text Solution

    |

  4. The forward biased diode connection is

    Text Solution

    |

  5. A single of 5 kHz frequency is amplitude modulated on a carrier wave o...

    Text Solution

    |

  6. In an unbiased p-n junction electrons diffuse from n-region to p-regio...

    Text Solution

    |

  7. A 2V battery is connected across AB as shown in the figure. The value ...

    Text Solution

    |

  8. The value of the resistor, R(S), needed in the dc voltage regulator ci...

    Text Solution

    |

  9. Choose the correct statement.

    Text Solution

    |

  10. For common emitter configuration, if alpha and beta have their usual m...

    Text Solution

    |

  11. if a,b,c,dare inputs to a gate and x is its output , then as per the f...

    Text Solution

    |

  12. The temperature dependence of resistances of Cu and undoped Si in the ...

    Text Solution

    |

  13. An audio signal consists of two distinct sound. One a human speech sig...

    Text Solution

    |

  14. An unknown transistor needs to be identified as npn and pnp type. A mu...

    Text Solution

    |

  15. An experiment is preformed to determine the I-V characteristics of a Z...

    Text Solution

    |

  16. The truth table given below belongs for which gates {:(A,B,Y),(0,0,0...

    Text Solution

    |

  17. A modulated signal Cm(t) has the form Cm(t) = 30 sin 300pi t + 20 (cos...

    Text Solution

    |

  18. The ratio (R) of output resistance r0 and the input resistance r, in m...

    Text Solution

    |

  19. To get an output 1, the input ABC should be :-

    Text Solution

    |

  20. A realistic graph depiciting the variation of thhe reciprocal of input...

    Text Solution

    |