Hybrid-π model- Bulk resistance in base terminals

Q.  Which resistance in hybrid π model of transistor represents the bulk resistance present between the external base terminal and the virtual base?
- Published on 23 Sep 15

a. Collector-to-emitter resistance (rce)
b. Base spreading resistance (ŕbb)
c. Virtual base to emitter resistance (ŕbe)
d. None of the above

ANSWER: Base spreading resistance (ŕbb)

Related Content

 

    Discussion

  • Satyawati   -Posted on 30 Sep 15
    Hybrid - π model consists of several resistances & capacitances.

    As per the configuration of hybrid-π model, the resistance present between the external base terminal and the virtual base is regarded as bulk resistance.

    Hence, it is also known as base spreading resistance because the internal node (B') in hybrid-π model of transistor is not physically accessible.

    To comprehend the unaccessible terminal 'B' and analyze its functionally associated resistances in hybrid-π model, base spreading resistances are used.

➨ Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)
▲