Electrical Machines In DC generator, armature reaction refers to what? None of these Effect of field flux on the armature flux. Effect of armature flux on the main field flux. Effect of armature flux on the load. None of these Effect of field flux on the armature flux. Effect of armature flux on the main field flux. Effect of armature flux on the load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an AC servomotor has one of its winding excited by AC, then voltage measured at the other winding with rotor running will be zero. proportional to square of rotor speed. proportional to rotor speed. constant independent of speed. zero. proportional to square of rotor speed. proportional to rotor speed. constant independent of speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 200 V DC machine supplies 20 A at 200 V as a generator. The armature resistance is 0.2 Ω. If the machine is now operated as a motor at same terminal voltage and current but with the flux increased by 10%, the ratio of motor speed to generator speed is 1.06 0.87 0.95 0.96 1.06 0.87 0.95 0.96 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motor have which of the following application? Traction. Domestic pump. Lift. Food mixer. Traction. Domestic pump. Lift. Food mixer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are changes. different. none of above. same. changes. different. none of above. same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is both of above. DC. AC. None of these both of above. DC. AC. None of these ANSWER DOWNLOAD EXAMIANS APP
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