166. The temperature coefficient of resistance of electrolytes is

 In thermal electric generating plant, overall efficiency is improved when

a.  Boiler pressure is increased

b.  The difference between initial pressure and temperature and exhaust pressure and temperature are held at a maximum

c.  Load on the units is increased

d.  Increased the no. of generator

1. 3.A 3-phase ,Y- connected synchronous motor operates at 480 volt,50 Hz,2-pole,0.8 pf leading.The armature winding resistance is j1.5 ohm.The efficiency of the motor is 95%.The output torque of the motor at rated conditions is 350 Nm .Calculate: (a)the output power (b)the input power and the input current (c)the internal generated voltage Ea (d)the converted power (e)power losses (20 points)

the heating element of a clothes dryer has a resistance of 11 ohms and is connected across a 240 volts electrical outlet. what is the current in the heating element