DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The motor will continue to run The motor will run noisy The armature may burn The motor will stop The motor will continue to run The motor will run noisy The armature may burn The motor will stop ANSWER DOWNLOAD EXAMIANS APP
DC Motors The iron loss in dc motor depends on Both flux and speed Speed only Flux only None of the listed here Both flux and speed Speed only Flux only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is 4000 rpm 1000 rpm 2000 rpm Infinity 4000 rpm 1000 rpm 2000 rpm Infinity ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following law can be used to determine the direction of rotation of dc motor? Coloumb's law Fleming's left hand rule Faraday's law Lenz's law Coloumb's law Fleming's left hand rule Faraday's law Lenz's law ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will not run at all Motor will run at very slow speed Motor will run at very high speed Motor will burn Motor will not run at all Motor will run at very slow speed Motor will run at very high speed Motor will burn ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Decrease Become zero Remains same Increase Decrease Become zero Remains same Increase ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS