An a. c equivalent circuit of a BJT amplifier at midband is shown in F

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An a. c equivalent circuit of a BJT amplifier at midband is shown in Figure 1. Derive the expression for the current gain io/is in terms of circuit resistances and transistor parameters. Figure 1 The two graphs of the transfer characteristic of an n-channel enhancement MOSFET drawn in Figure 2 are wrong. Explain the possible errors that were made in drawing the characteristic. Figure 2

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An a.c equivalent circuit of a BJT amplifier at midband is shown in Figure 1. Derive the expression for the current gain

i_{o} / i_{s}

in terms of circuit resistances and transistor parameters. Figure 1

The two graphs of the transfer characteristic of an n-channel enhancement MOSFET drawn in Figure 2 are wrong. Explain the possible errors that were made in drawing the chracteristic. Figure 2