Electrical Machines At stand still condition the value of slip is 1 finite value 0 infinite value 1 finite value 0 infinite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying all of these. resistance of armature culture. applied voltage. its flux oer pole. all of these. resistance of armature culture. applied voltage. its flux oer pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The residual magnetism of a self-excited dc generator is lost. To build up its emf again field winding must be excited by low voltage dc supply the armature connection must be reversed the field winding must be replaced the field winding connection must be reversed field winding must be excited by low voltage dc supply the armature connection must be reversed the field winding must be replaced the field winding connection must be reversed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under trailing pole tips in case of generator will increase either increase or decrease decrease None of these increase either increase or decrease decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor is, in general analogous to auto transformer. None of these two winding transformer with secondary short circuited. two winding transformer with secondary open circuited. auto transformer. None of these two winding transformer with secondary short circuited. two winding transformer with secondary open circuited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss will depends on f1.6 f f³ f² f1.6 f f³ f² ANSWER DOWNLOAD EXAMIANS APP