(a) The bias voltages in the circuit shown in Figure P5.25 are changed to \(V^{+}=3.3 \mathrm{~V}\) and \(V^{-}=-3.3 \mathrm{~V}\). The measured value of emitter voltage is \(V_{E}=0.85 \mathrm{~V}\). Determine \(I_{E}, I_{C}, \beta, \alpha\), and \(V_{E C}\).

(b) Using the results of part (a), determine \(V_{E}\) and \(V_{E C}\) if \(\beta\) increases by 10 percent.

Transcribed Image Text:

RB = 50 k2 +10 V RE=10 k2 VE Figure P5.25 -10 V Rc = 10 k