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** I only need help on (c) , (d) , (e) , (h) **

3. Consider the amplifier to the right. Do not ignore the Early effect resistance, and assume that the values of, ro, β , and gm, are known, or have been found from the DC analysis. For the following questions, show all steps of the circuit analysis (a) What type of amplifier is it? (b) Draw the small-signal version of this amplifier (c) Derive an expression for the input resistance Ri of this (d) Derive an expression for the output resistance Ro of this (e) Derive an expression for the voltage gain of this amplifier (f) Derive an expression for the following current gain: i/i, amplifier (at the left arrow) amplifier (at the right arrow) (vov) where i is the current at Ri flowing from left to right, and ic R1 CO is the current at Rs flowing downwards (g) Derive an expression for the acceptable signal (voltage) range of this amplifier for v, so that the linearity assumption is still valid. (h) Replace the BJT with a MOSFET, and show the equivalent expressions for the input resistance, output resistance, and voltage gain, by using your results in (c), (d) and (e). Do not re-analyze the circuit to find these expressions

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