Discussion in 'Homework Help' started by Jeff_fa_fah, Jul 5, 2011.

  1. Jeff_fa_fah

    Thread Starter New Member

    Jul 5, 2011
    Hey guys,

    I was making some practise exams and I got stuck on the following thing:

    I need to know the Thévenin Voltage and Thévenin Resistance.

    Hope you guys can explain me how to fix this.
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    Basically you find the Thevenin equivalent of the voltage divider network comprising the 3M & 1M resistors in association with the 18V DC supply. You need the Thevenin equivalent as seen at the common junction of the resistors at the base terminal. Initially consider the voltage divider network as being disconnected from the base terminal. Then 'reconnect' the derived Thevenin equivalent to the base terminal to continue with the analysis.