Por el circuito primario de un transformador circula una corriente alterna de tensión máxima igual a 3000 V e intensidad máxima igual a 2 mA. ¿Cual es la
tensión y la intensidad máximas de salida si el circuito primario tiene 900
espiras y el secundario 30 espiras?.

Fluids at rest possess no flow energy. a)- true b)- false

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)