Electrical Machines In a transformer maximum flux density is not constant, the eddy current loss varies as V² V f f² V² V f f² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To achieve spark less commutation brushes of DC generator are rocked ahead so as to bring them in magnetic neutral axis. just ahead of magnetic neutral axis. None of these just behind the magnetic neutral axis. in magnetic neutral axis. just ahead of magnetic neutral axis. None of these just behind the magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of connection is made in between the inter-pole and the field winding? None of the options. Series. Compound. Parallel. None of the options. Series. Compound. Parallel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are preferred in lifts? DC series motors. DC shunt motors. DC compound motors. None of these DC series motors. DC shunt motors. DC compound motors. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole lap wound dc generator has 4 brushes, if one of the brush is damaged, what will be the change in V, I and P ratings V/2, I/2 and P/4 V, I and P V, I/2 and P/2 V/2, I and P/2 V/2, I/2 and P/4 V, I and P V, I/2 and P/2 V/2, I and P/2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle? 30° 60° 45° 10° 30° 60° 45° 10° ANSWER DOWNLOAD EXAMIANS APP
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