Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 37 36 74 72 37 36 74 72 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of tappings for each equalizer ring is equal to number of parallel paths. number of pole pairs. number of commutator segments. number of poles. number of parallel paths. number of pole pairs. number of commutator segments. number of poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of a dc motor is given by none of these. EbIa2. EIa. EbIa. none of these. EbIa2. EIa. EbIa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Oil impregnated paper. Vacuum. Glass. Mica. Oil impregnated paper. Vacuum. Glass. Mica. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to absorb moisture of air during breathing. provide cold air in transformer. absorb moisture from air entering in transformer. filter the transformer oil. absorb moisture of air during breathing. provide cold air in transformer. absorb moisture from air entering in transformer. filter the transformer oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor when the length of the air gap is increased, the magnetizing current of the motor increases while the short circuit current __________________. decreased. increased. kept constant to certain value. remains unchanged. decreased. increased. kept constant to certain value. remains unchanged. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS