The following circuit is called a cascode amplifier. Ignoring channel length modulation and body effect, calculate the gain of this stage. b) Ignoring body effect, compute the impedance looking into the drain of M2. (Do not neglect cannel length modulation effect and do not use KVL/KCL). c) Approximate and simplify the value calculated in (b). What is the benefit of using cascode instead of common source

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.