Electrical Machines A motor operates in stable region at which of the following slip? both 1 and 2 high slip region low slip region unity slip both 1 and 2 high slip region low slip region unity slip ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor having 8 poles runs at 727.5 rpm. If the supply frequency is 50Hz, the emf in the rotor will have a frequency of 48.5Hz 51.5Hz 2.5Hz 1.5Hz 48.5Hz 51.5Hz 2.5Hz 1.5Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, for the same value of Æ, Z and N; which one of the following statements is correct? Armature emf is more with wave winding than with lap winding. Armature emf is same as long as the flux density in the air gap remains the same. Armature emf is less with wave winding than with lap winding. Armature emf depends on weather the machine is running as a motor or generator. Armature emf is more with wave winding than with lap winding. Armature emf is same as long as the flux density in the air gap remains the same. Armature emf is less with wave winding than with lap winding. Armature emf depends on weather the machine is running as a motor or generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will both decrease both increase increase and decrease respectively decrease and increase respectively both decrease both increase increase and decrease respectively decrease and increase respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque developed in IM is nearly proportional to V. 1 / V2. V2. 1 / V. V. 1 / V2. V2. 1 / V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for simple wave-winding ? PZL/ 4Sa PZL/4Sp² PZL/4S PZL/4Sa² PZL/ 4Sa PZL/4Sp² PZL/4S PZL/4Sa² ANSWER DOWNLOAD EXAMIANS APP
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