Home
Class 12
PHYSICS
In a common emitter configuration, a tra...

In a common emitter configuration, a transistor has `beta=50` and input resistance `1kOmega`. If the peak value of a.c. input is 0.01 V then the peak value of collector current is

A

`0.01 muA`

B

`0.25 muA`

C

`100 muA`

D

`500 muA`

Text Solution

Verified by Experts

The correct Answer is:
D

Here, `beta=50, R_(i)=1 kOmega=10^(3)Omega`,
`V_(i)=0.01 V =10^(-2)V`
`I_=V_(i)/R_(i)=(10^(-2)V)/(10^(3)Omega)=10^(-5)A`
`I_=betaI_=50xx10^(-5)=500xx10^(-6)A=500 muA`
Promotional Banner

Topper's Solved these Questions

  • ELECTRONIC DEVICES

    PRADEEP|Exercise LONG QUESTION ANSWER|2 Videos
  • ELECTRONIC DEVICES

    PRADEEP|Exercise PROBLEMS FOR PRACTICE|7 Videos
  • ELECTRONIC DEVICES

    PRADEEP|Exercise HIGHER ORDER THINKING SKILLS|1 Videos
  • ELECTROMAGNETIC WAVES

    PRADEEP|Exercise II Focus multiple choice question|5 Videos
  • ELECTROSTATICS

    PRADEEP|Exercise ASSERTION-REASON TYPE QUESTIONS|2 Videos

Similar Questions

Explore conceptually related problems

A load resistance of 3 k Omega is connected in the collector circuit of an amplifier using common emitter configuration with beta = 50 and input resistance 500 Omega . If the input current is changed by 40 mu A then by what amount does the output voltage change :-

The current transfer ratio beta of a transistor is 50. The input resistance of the transistor when used in common emitter mode is 1 kilo ohm. The peak value of the collector alternating current for an input peak voltage of 0.01 volt is

In a common emitter amplifier, using output reisistance of 5000 ohm and input resistance fo 2000 ohm, if the peak value of input signal voltage is 10 m V and beta=50 , then the peak value of output voltage is

A transistor, connected in common emitter configuration, has input resistance R_(i)=2kOmega and load resistance 6kOmega . If beta=60 and an input signal 10mV is applied, calculate the (i) resistance gain, (ii) voltage gain (iii) the power gain and (iv) the value of the output signal.

In a common base configuration, the transistor has emitter current of 10 mA and collector current of 9.8 mA. The value of base current is….

PRADEEP-ELECTRONIC DEVICES-Exercise
  1. The voltage gain of an amplifier with 9% negative feedback is 10. The ...

    Text Solution

    |

  2. For a common emitter amplifier, the audio frequency voltage across the...

    Text Solution

    |

  3. In a common emitter configuration, a transistor has beta=50 and input ...

    Text Solution

    |

  4. In common emitter transistor amplifier circuit, the input signal volta...

    Text Solution

    |

  5. A npn transistor is connected in common emitter configuration in a giv...

    Text Solution

    |

  6. Transfer characterstics [output voltage (V(o)) vs. input voltage (V(i)...

    Text Solution

    |

  7. In a common emitter transistor transistor amplifier, the audio signal ...

    Text Solution

    |

  8. The Boolean expression P+bar(P)Q, where P and Q are the inputs of the ...

    Text Solution

    |

  9. Which logic gate is represented by the following combination of logic ...

    Text Solution

    |

  10. If (i), (ii), (iii), (iv) are inputs to a gate and x is output, then a...

    Text Solution

    |

  11. Fig, shows a logic gate circuit with two input A and B and the output ...

    Text Solution

    |

  12. To write the decimal number 37 in binary, how many binary digit are re...

    Text Solution

    |

  13. What is the decimal number of binary number (111001.01)(2)?

    Text Solution

    |

  14. The combination of the 'NAND' gates shown here (Fig.) and (ii)) are eq...

    Text Solution

    |

  15. In the circuit Fig. the output y becomes zero for the inputs

    Text Solution

    |

  16. The Fig.shows a logic gate circuit with two inputs A and B and the out...

    Text Solution

    |

  17. The given electrical network is equivalent to:

    Text Solution

    |

  18. How many gates are required to design , y=A+barA.B ? Also name the gat...

    Text Solution

    |

  19. In the following combinations of logic gates, the outputs A, B and C a...

    Text Solution

    |

  20. To get an output y=1 from the circuit shown below, the input must be

    Text Solution

    |