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Consider the amplifier circuit below. Produce the small-signal equivalent circuit using: the pi-model for α ≤ 8 the T-model for α ≥ 9. Ignoring ro, write expressions for (a) the amplifier voltage gain (b) the input resistance (c) the output resistance.

Consider the amplifier circuit below. Produce the small-signal equivalent circuit using: the pi-model for α ≤ 8 the T-model for α ≥ 9. Ignoring ro, write expressions for (a) the amplifier voltage gain (b) the input resistance (c) the output resistance.

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Consider the amplifier circuit below. Produce the small-signal equivalent circuit using: the pi-model for α ≤ 8 the T-model for α ≥ 9. Ignoring ro, write expressions for (a) the amplifier voltage gain (b) the input resistance (c) the output resistance.

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