Electrical Machines To eliminate the 5th harmonic in the induced voltages their respective pitch factor angle should be 18° 30° 72° 36° 18° 30° 72° 36° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? All of these. Field flux. Armature current Ia. Applied voltage. All of these. Field flux. Armature current Ia. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The coil spam none of above. can never be equal to pole pitch. may or may not be exactly equal to people pitch. must be exactly equal to people pitch. none of above. can never be equal to pole pitch. may or may not be exactly equal to people pitch. must be exactly equal to people pitch. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under leading 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 The power developed by salient pole synchronous machine is/are both 1 and 2 excitation power only None of these power due to saliency or reluctance only both 1 and 2 excitation power only None of these power due to saliency or reluctance only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When R2 is rotor resistance, X2 the rotor reactance at supply frequency and s the slip, then the condition for maximum torque under running condition will be R2 = s2X2. R2 = s2X2. R2 = sX2. sR2 = X2. R2 = s2X2. R2 = s2X2. R2 = sX2. sR2 = X2. ANSWER DOWNLOAD EXAMIANS APP
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