OpAmps are key active building blocks in elec- trical circuits, and are commonly used in many applications such as amplifying sensor signals, or implementing various lters and compensators in electronic controllers. Due to very high open-loop gain, OpAmps are typically used with negative feedback, and with proper characteristics, the closed- loop gain of the ampli er can be controlled primarily by the

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.