Refer to Exercise 2.3. This problem explores an alternative internal structure for the op amp. In particular, we wish to model the internal structure of a particular op amp using two transconductance amplifiers and one transresistance amplifier. Suggest an appropriate topology. For equal transconductances Gm and a transresistance Rm, find an expression for the open-loop gain A. For Gm = 10 mA/V and Rm = 2 106 , what value of A results?
• Solving the ideal gas equation for the volume of 1 mol of gas at STP gives you22.4L o 6.022 X10 molecules of gas o Noticethe gas is immaterial • We call the volume of 1 mole of gas at STP the molar volume o Note: that 1 mole measure of different gases have different masses even though the volume is the same Densityof Gases Density=mass / volume density= molar mass / molar volume PV=nRT n= mass/molar mass = m/M n/v= P/ RT (m/M) / V= P/ RT m / V(M)= P/ RT m/v= PM/ RT d= PM / RT Daltons law of Partial Pressure Ptotal P a P b Pa=n aT / V P b n bT/ V Mole Fraction (X) X a n a n a n b X b n b n +an b Collecting gas over water If we want to know the amount of pressure due to hydrogen, we must take into accountthe pressure due to water Ptotal P hydrogen P water
