Home
Class 12
PHYSICS
What is meant by input and output resist...

What is meant by input and output resistance of a transistor amplifier in CE mode?

Text Solution

Verified by Experts

i. The dynamic or ac input resistance is defined as the ratio of change in base-emitter voltage to the change in base current at a constant collector-emitter voltage.
i.e., `" " r_( i) = ((Delta V_("BE"))/(Delta I_(B)))_(V_("CE")`
ii The dynamic or ac output resistance is defined as the ratio of change in collector emitter voltage to the change in collector current at a constant base current.
i.e., `" " r_(0) = ((Delta V_("CE"))/(Delta I_(C) ))_(I_(B))`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS

    SUBHASH PUBLICATION|Exercise FIVE MARKS QUESTIONS WITH ANSWERS|9 Videos

  • SEMICONDUCTOR ELECTRONICS

    SUBHASH PUBLICATION|Exercise OPTIONAL NUMERICALS WITH SOLUTIONS|6 Videos

  • SEMICONDUCTOR ELECTRONICS

    SUBHASH PUBLICATION|Exercise OPTIONAL NUMERICALS WITH SOLUTIONS|6 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|22 Videos

  • SUPER MODEL QUESTION PAPER ( WITH ANSWERS )

    SUBHASH PUBLICATION|Exercise PART D|26 Videos

Similar Questions

Explore conceptually related problems

What is a transistor ?

What is an amplifier? Draw the simple circuit of transistor amplifier in CE mode.

Knowledge Check

  • For a transistor amplifier, the voltage gain

    A
    is low at high and low frequencies and constant at mid frequencies
    B
    remains constant for all frequencies
    C
    constant at high frequencies and low at low frequencies
    D
    is high at high and low frequencies and constant in the middle frequency range.

    • Similar Questions

    Explore conceptually related problems

    Draw a neat labelled diagram of a transistor amplifier in a CE mode.

    What is meant by the statement that the resistance of a wire is 1 Omega ?

    Draw a neat circuit diagram of a n-p-n transistor as an amplifier in C.E. mode

    Show the circuit arrangement for studying the input and output characteristics of a n-p-n transistor in CE configuration.

    with a suitable circuit explain the action of a transistor as an amplifier in CE configuration .

    Phase angle between input and output signals in a CE amplifier in degrees is

    What is an amplifier?

    Home
    Profile