DC Motors The speed of a dc motor can be controlled by changing Armature circuit resistance Is flux All of the listed here Aplied voltage Armature circuit resistance Is flux All of the listed here Aplied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed regulation of the motor is 2.22% 4.76% 8.85% 6.77% 2.22% 4.76% 8.85% 6.77% ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Field control method Armature resistance control method Voltage control method Field divertor method Field control method Armature resistance control method Voltage control method Field divertor method ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at Half full load None of the listed here No load Full load Half full load None of the listed here No load Full load ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens This will make armature to take heavy current, possibly burning it Motor will run at very slow speed This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor This will make armature to take heavy current, possibly burning it Motor will run at very slow speed This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally Infinitely large 1000 Ω Low Around 500 Ω Infinitely large 1000 Ω Low Around 500 Ω ANSWER DOWNLOAD EXAMIANS APP
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