DC Motors When two dc series motor are commected in parallel, the resultant speed is Normal speed More than the normal speed Zero Loss than the normal speed Normal speed More than the normal speed Zero Loss than the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following law can be used to determine the direction of rotation of dc motor? Lenz's law Fleming's left hand rule Faraday's law Coloumb's law Lenz's law Fleming's left hand rule Faraday's law Coloumb's law ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ Opposes the applied voltage None of the listed here Aids the armature current Aids the applied voltage Opposes the applied voltage None of the listed here Aids the armature current Aids the applied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is 2000 rpm Infinity 4000 rpm 1000 rpm 2000 rpm Infinity 4000 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Decrease speed Increase speed Produce flat characteristics Reduce sparking Decrease speed Increase speed Produce flat characteristics Reduce sparking ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 6 poles 2 poles 4 poles 8 poles 6 poles 2 poles 4 poles 8 poles ANSWER DOWNLOAD EXAMIANS APP
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