PYQ Vault
EbooksTutor

Voltage or power gain of a common-emitter transistor amplifier

This type of question, asked 5 times: 14 Jun 2022, 25 Jun 2022, 29 Jun 2022, 26 Jul 2022, 13 Apr 2023. All 5 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    14 Jun 2022

    23
    A transistor is used in common-emitter mode in an amplifier circuit. When a signal of 10mV10mV is added to the base-emitter voltage, the base current changes by 10μA10\mu A and the collector current changes by 1.5 mA1.5\text{ }mA. The load resistance is 5kΩ5k\Omega. The voltage gain of the transistor will be

  2. Question 2

    25 Jun 2022

    120
    In an experiment of CECE configuration of n−p−nn-p-n transistor, the transfer characteristics are observed as given in figure. If the input resistance is 200Ω200\Omega and output resistance is 60Ω60\Omega the voltage gain in this experiment will be

  3. Question 3

    29 Jun 2022

    28
    A transistor is used in an amplifier circuit in common emitter mode. If the base current changes by 100μA100\mu A, it brings a change of 10 mA10\text{ }mA in collector current. If the load resistance is 2kΩ2k\Omega and input resistance is 1kΩ1k\Omega, the value of power gain is x×104x \times10^{4}. The value of xx is

  4. Question 4

    26 Jul 2022

    116
    The typical transfer characteristic of a transistor in CE configuration is shown in figure. A load resistor of 2kΩ2k\Omega is connected in the collector branch of the circuit used. The input resistance of the transistor is 0.50kΩ0.50k\Omega. The voltage gain of the transistor is

  5. Question 5

    13 Apr 2023

    30
    From the given transfer characteristic of a transistor in CE configuration, the value of power gain of this configuration is 10x10^{x}, for RB=10kΩR_{B}= 10k\Omega, and RC=1kΩR_{C}= 1k\Omega. The value of xx is_____