1. The problem statement, all variables and given/known data I recently completed a lab where I set up a buffer amp. Its input was a function generator set at 5Vp amplitude and we placed various load resistors on the output to test Vout on an oscilloscope ( 75kΩ, 3300Ω, 510Ω and 68Ω.) From my data I noticed that the Vout was the same for the first 3 (which makes sense since the buffer amp overcomes the loading effect), but for the 68Ω the Vout value decreased. Since Vout on a buffer = Vin, how is this possible ? Or does the buffer amp only decrease the loading effect of a practical source? Not remove it. 2. Relevant equations Vout = Vin 3. The attempt at a solution I know that a smaller load resistor would increase the current coming out of the Op Amp, but I am not sure how that could effec the output voltage.