The following circuit utilizes a 5.1 V zener diode (at 50mA) and whose incremental resistance is . The diode is powered from a supply of 15 V nominal voltage through a resistor. Find: a) The output voltage at no load (mathematically) b) The line regulation (mV/V) c) The load regulation (mV/mA)

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?

What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?