PROCEDUERS: 1. Connect the circuit as shown in fig. using box resistance. 2. Choose E-6v. 3. Measure the current and voltage across t 4. Calculate R using Olim's law. 5. Use the ohmmeter to measure R. 6. Repeat 2 to 5 for fig.2. Discussion 1. Why using fig. I to measure large resistances while fig2 to measure low resistances 2. Compare between the measurements using ohmmeter and veltmeter antmeter meathod.

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)