Electrical Machines In a stepper motor the detente torque means minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. maximum of the static torque with the phase winding excited. minimum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. maximum of the static torque with the phase winding excited. minimum of the static torque with the phase winding unexcited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of armature MMF wave is? Triangular and directed towards brush axis. Peaky in nature. Saddle shape. Triangular and directed towards main pole. Triangular and directed towards brush axis. Peaky in nature. Saddle shape. Triangular and directed towards main pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following type of brush and their application is/are correct All of these copper graphite → low voltage high current density carbon brush → normal ratings electro graphite → large ratings All of these copper graphite → low voltage high current density carbon brush → normal ratings electro graphite → large ratings ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 21% 11% 41% 10% 21% 11% 41% 10% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generators work on the principle of production of statically induced emf. None of these dynamically and statically induced emf. dynamically induced emf. statically induced emf. None of these dynamically and statically induced emf. dynamically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on stator frame. None of these rotor shaft. pole faces. stator frame. None of these rotor shaft. pole faces. ANSWER DOWNLOAD EXAMIANS APP
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