Common-Emitter Amplifiers

  • #1
Quick question, i have a formula for finding rc (the ac resistance in the collector circuit) which is rc=RC(collector) is the parallel combination of RL I don't understand that for the example they have RC(collector resistor)= 12K ohms parallel to RL=50k ohms = 9.68K ohms.. someone explain the proper way to get 9.68k???? Thanks
 

Answers and Replies

  • #2
chroot
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Resistors in parallel add this way:

[tex]\left( 50k^{-1} + 12k^{-1} \right)^{-1} = 9.68k[/tex]

- Warren
 
  • #3
Resistors in parallel add this way:

[tex]\left( 50k^{-1} + 12k^{-1} \right)^{-1} = 9.68k[/tex]

- Warren
yeah I figured it out, just had never seen it in those terms, thanks warren!
 

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