Figure P6.98 shows a transistor with the collector
Chapter 6, Problem 6.98(choose chapter or problem)
Figure P6.98 shows a transistor with the collector connected to the base. The bias arrangement is not shown. Since a zero implies operation in the active mode, the BJT can be replaced by one of the small-signal models of Figs. 6.40 and 6.41. Use the model of Fig. 6.41(b) and show that the resulting two-terminal device, known as a diode connected transistor, has a small-signal resistance r equal to
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