Sawaal
1
Q:

D.C Series motor never operated on 

A) Full Load B) Half Load
C) No Load D) At any Load

Answer:   C) No Load



Explanation:

D.C series motor both armature and feild connected in series at noload condition current drawn by the motor is zero Ia=0 flux also zero. but very small amount of flux avalible because of residual magnetism

in series motor speed  =  N α Eb/Φ Eb almost conistant

                                 =    N α 1/Φ

At no load condition d.c series can be run as dangerously very high so d.c series motor
operated at load condition only

Subject: General Awareness
Exam Prep: Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO
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