An npn transistor with (beta=80) is connected in a common-base configuration as shown in Figure P5.6. (a)

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An npn transistor with \(\beta=80\) is connected in a common-base configuration as shown in Figure P5.6.

(a) The emitter is driven by a constant-current source with \(I_{E}=1.2 \mathrm{~mA}\). Determine \(I_{B}, I_{C}, \alpha\), and \(V_{C}\).

(b) Repeat part (a) for \(I_{E}=0.80 \mathrm{~mA}\).

(c) Repeat parts (a) and (b) for \(\beta=120\).

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