1) Draw an equivalent circuit of the machine. Notate each element and put slip (s) into the circuit diagram.
If the mechanical power sent out from the machine is 100 kW at a rotating speed of 90% of the nominal speed. Compute the slip of the machine and find the power dissipation due to the rotor winding resistance.
2) A solar cell under illumination of 100 milliWatts/cm^2 has a short circuit current ISC of 50 mA and an open circuit voltage VOC of 0.55 V. What are the short circuit current and open circuit voltage when the light intensity is 50 milliWatts/cm^2 ? The diode quality factor is 1.2.