1.Design a feedback bias a circuit using a Vee supply of +18v, and an npn silicon transistor with hre of 200 and hie of 2KQ. 2.For the circuit designed in part (1),determine the change in Ic if a change in operating conditions results in Ico increasing from 0.2 to 10µA,VBE drops from 0.7 to 0.6 and ß increase 20%. 3. Calculate the change in Ic from 20 to 80 C for the circuit designed if Ico=0.2µA and VBE=0.7V.

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