Strep throat (an infection of the throat caused by group A streptococcus bacteria, also called Streptococcus pyogenes) is most contagious starting a few days before symptoms show up and decreases after a person has been on antibiotics for at least 24 hours.aused by group A strep infection, the illness causes fever, sore throat, white spots on the tonsils, swollen lymph nodes, a bright-red strawberry tongue, and a tell-tale red rash that starts on the abdomen and spreads throughout the body within two days.
An induction or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.ince rotation at synchronous speed would result in no induced rotor current, an induction motor always operates slower than synchronous speed. The difference, or slip, between actual and synchronous speed varies from about 0.5 to 5.0% for standard Design B torque curve induction motors.
Parts of an Induction Motor. An induction motor has 2 main parts; the Stator and Rotor. The Stator is the stationary part and the rotor is the rotating part. The Rotor sits inside the Stator.There will be a small gap between rotor and stator, known as air-gap.The value of the radial air-gap may vary from 0.5 to 2 mm.hat's why the name induction motor is used, electricity is induced in rotor by magnetic induction rather than direct electric connection. To aid such electromagnetic induction, insulated iron core lamina are packed inside the rotor. Such small slices of iron layers make sure that eddy current losses are at a minimum.