2–92 Transistor Biasing The circuit shown in Figure P2−92 is a typical biasing arrangement for a BJT-type transistor. The actual transistor for this problem can be modeled as 0:7-V battery in series with a 200-kΩ resistor. Biasing allows signals that have both positive and negative variations to be properly amplified by the transistor.

Select the two biasing resistors RA and RB so that 3 0:1V appears across RB.

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+o 3 V RA RB www +15 V Transistor 0.7V 200 FIGURE P2-92