What are the voltage gain, input resistance, and output resistance of the amplifier in Fig. P10.60 if Ri = 8.2 k and R₂ 750 k2? Express the voltage gain in dB.

Give the input and output impedances for an ideal-voltage amplifier. Repeat for each of the other ideal amplifier types.

QUESTION 2 An amplifier has equivalent thermal input noise sources of Sny/ and 10pA/VHz. It has a voltage gain of 10, a noise Bandwidth of 10MHZ. and a high input impedance. What would its noise figure be if driven by a source with an impedance chosen to minimise the amplifier noise figure? Enter your numeric answer to 3 significant figures (no units).

Draw the electronic circuit of a subtraction amplifier with two inputs (V. and V2) and one output (V.) implemented using only one operational amplifier. Substitute the equation that gives V. in terms of Vi and V2 using circuit analysis techniques. DO NOT use any pre-driven formula and consider the amplifier is an ideal one.