An amplifier with 40 db of small-signal, open-circuit voltage gain, an input resistance of 1 m, and an output resistance of 100 , drives a load of 500 . what voltage and power gains (expressed in db) would you expect with the load connected? if the amplifier has a peak output-current limitation of 20 ma, what is the rms value of the largest sine-wave input for which an undistorted output is possible? what is the corresponding output power available?

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.